1720500552 has 96 divisors (see below), whose sum is σ = 4756752000. Its totient is φ = 561674880.

The previous prime is 1720500517. The next prime is 1720500557. The reversal of 1720500552 is 2550050271.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1720500557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 743974 + ... + 746282.

It is an arithmetic number, because the mean of its divisors is an integer number (49549500).

Almost surely, 2^1720500552 is an apocalyptic number.

1720500552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1720500552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2378376000).

1720500552 is an abundant number, since it is smaller than the sum of its proper divisors (3036251448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1720500552 is a wasteful number, since it uses less digits than its factorization.

1720500552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531 (or 2524 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 1720500552 is about 41478.9169578956. The cubic root of 1720500552 is about 1198.2614992289.

The spelling of 1720500552 in words is "one billion, seven hundred twenty million, five hundred thousand, five hundred fifty-two".