1553100540 has 24 divisors (see below), whose sum is σ = 4348681680. Its totient is φ = 414160128.

The previous prime is 1553100511. The next prime is 1553100547. The reversal of 1553100540 is 450013551.

It is a self number, because there is not a number n which added to its sum of digits gives 1553100540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553100547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12942445 + ... + 12942564.

It is an arithmetic number, because the mean of its divisors is an integer number (181195070).

Almost surely, 2^1553100540 is an apocalyptic number.

1553100540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1553100540 is an abundant number, since it is smaller than the sum of its proper divisors (2795581140).

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

1553100540 is a wasteful number, since it uses less digits than its factorization.

1553100540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25885021 (or 25885019 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1553100540 is about 39409.3965952284. The cubic root of 1553100540 is about 1158.0656773820.

The spelling of 1553100540 in words is "one billion, five hundred fifty-three million, one hundred thousand, five hundred forty".