552971640 has 64 divisors (see below), whose sum is σ = 1786528800. Its totient is φ = 136115712.

The previous prime is 552971621. The next prime is 552971651. The reversal of 552971640 is 46179255.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175675 + ... + 178794.

Almost surely, 2^552971640 is an apocalyptic number.

It is an amenable number.

552971640 is an abundant number, since it is smaller than the sum of its proper divisors (1233557160).

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

552971640 is a wasteful number, since it uses less digits than its factorization.

552971640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354496 (or 354492 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 552971640 is about 23515.3490299421. The cubic root of 552971640 is about 820.7942136584.

The spelling of 552971640 in words is "five hundred fifty-two million, nine hundred seventy-one thousand, six hundred forty".