53900490 has 96 divisors (see below), whose sum is σ = 154704384. Its totient is φ = 11975040.

The previous prime is 53900471. The next prime is 53900491. The reversal of 53900490 is 9400935.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (53900491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53895 + ... + 54885.

It is an arithmetic number, because the mean of its divisors is an integer number (1611504).

Almost surely, 2^53900490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53900490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77352192).

53900490 is an abundant number, since it is smaller than the sum of its proper divisors (100803894).

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

53900490 is a wasteful number, since it uses less digits than its factorization.

53900490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 53900490 is about 7341.6953083058. The cubic root of 53900490 is about 377.7439967551.

The spelling of 53900490 in words is "fifty-three million, nine hundred thousand, four hundred ninety".