551025252 has 18 divisors (see below), whose sum is σ = 1392869478. Its totient is φ = 183675072.

The previous prime is 551025247. The next prime is 551025253. The reversal of 551025252 is 252520155.

It can be written as a sum of positive squares in only one way, i.e., 529736256 + 21288996 = 23016^2 + 4614^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (551025253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7653093 + ... + 7653164.

Almost surely, 2^551025252 is an apocalyptic number.

It is an amenable number.

551025252 is an abundant number, since it is smaller than the sum of its proper divisors (841844226).

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

551025252 is a wasteful number, since it uses less digits than its factorization.

551025252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15306267 (or 15306262 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 551025252 is about 23473.9270681324. The cubic root of 551025252 is about 819.8300520298.

The spelling of 551025252 in words is "five hundred fifty-one million, twenty-five thousand, two hundred fifty-two".