551631052 has 24 divisors (see below), whose sum is σ = 1121351840. Its totient is φ = 232536960.

The previous prime is 551631043. The next prime is 551631053. The reversal of 551631052 is 250136155.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 551631052.

It is not an unprimeable number, because it can be changed into a prime (551631053) 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, 159777 + ... + 163192.

Almost surely, 2^551631052 is an apocalyptic number.

It is an amenable number.

551631052 is an abundant number, since it is smaller than the sum of its proper divisors (569720788).

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

551631052 is a wasteful number, since it uses less digits than its factorization.

551631052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323041 (or 323039 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 551631052 is about 23486.8272016465. The cubic root of 551631052 is about 820.1303837884.

The spelling of 551631052 in words is "five hundred fifty-one million, six hundred thirty-one thousand, fifty-two".