537516640 has 48 divisors (see below), whose sum is σ = 1281791952. Its totient is φ = 212990464.

The previous prime is 537516583. The next prime is 537516671. The reversal of 537516640 is 46615735.

It is a self number, because there is not a number n which added to its sum of digits gives 537516640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422 + ... + 32818.

It is an arithmetic number, because the mean of its divisors is an integer number (26703999).

Almost surely, 2^537516640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537516640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640895976).

537516640 is an abundant number, since it is smaller than the sum of its proper divisors (744275312).

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

537516640 is a wasteful number, since it uses less digits than its factorization.

537516640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31519 (or 31511 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 537516640 is about 23184.4051034311. The cubic root of 537516640 is about 813.0750560968.

The spelling of 537516640 in words is "five hundred thirty-seven million, five hundred sixteen thousand, six hundred forty".