551547480 has 64 divisors (see below), whose sum is σ = 1805068800. Its totient is φ = 133708160.

The previous prime is 551547431. The next prime is 551547481. The reversal of 551547480 is 84745155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551547481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207600 + ... + 210239.

It is an arithmetic number, because the mean of its divisors is an integer number (28204200).

Almost surely, 2^551547480 is an apocalyptic number.

It is an amenable number.

551547480 is an abundant number, since it is smaller than the sum of its proper divisors (1253521320).

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

551547480 is a wasteful number, since it uses less digits than its factorization.

551547480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417864 (or 417860 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 39.

The square root of 551547480 is about 23485.0480093186. The cubic root of 551547480 is about 820.0889651640.

The spelling of 551547480 in words is "five hundred fifty-one million, five hundred forty-seven thousand, four hundred eighty".