551605260 has 24 divisors (see below), whose sum is σ = 1544494896. Its totient is φ = 147094720.

The previous prime is 551605231. The next prime is 551605277. The reversal of 551605260 is 62506155.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 4596651 + ... + 4596770.

It is an arithmetic number, because the mean of its divisors is an integer number (64353954).

Almost surely, 2^551605260 is an apocalyptic number.

It is an amenable number.

551605260 is an abundant number, since it is smaller than the sum of its proper divisors (992889636).

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

551605260 is a wasteful number, since it uses less digits than its factorization.

551605260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9193433 (or 9193431 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 551605260 is about 23486.2781214904. The cubic root of 551605260 is about 820.1176016142.

The spelling of 551605260 in words is "five hundred fifty-one million, six hundred five thousand, two hundred sixty".