551520412 has 24 divisors (see below), whose sum is σ = 973337904. Its totient is φ = 273434112.

The previous prime is 551520407. The next prime is 551520439. The reversal of 551520412 is 214025155.

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, 272428 + ... + 274444.

It is an arithmetic number, because the mean of its divisors is an integer number (40555746).

Almost surely, 2^551520412 is an apocalyptic number.

It is an amenable number.

551520412 is a deficient number, since it is larger than the sum of its proper divisors (421817492).

551520412 is a wasteful number, since it uses less digits than its factorization.

551520412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565 (or 2563 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 551520412 is about 23484.4717206924. The cubic root of 551520412 is about 820.0755492557.

Adding to 551520412 its reverse (214025155), we get a palindrome (765545567).

The spelling of 551520412 in words is "five hundred fifty-one million, five hundred twenty thousand, four hundred twelve".