551132748 has 72 divisors (see below), whose sum is σ = 1452288880. Its totient is φ = 182979000.

The previous prime is 551132731. The next prime is 551132759. The reversal of 551132748 is 847231155.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

551132748 is a `hidden beast` number, since 551 + 1 + 32 + 74 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2195623 + ... + 2195873.

Almost surely, 2^551132748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551132748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726144440).

551132748 is an abundant number, since it is smaller than the sum of its proper divisors (901156132).

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

551132748 is an frugal number, since it uses more digits than its factorization.

551132748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 256 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 551132748 is about 23476.2166457886. The cubic root of 551132748 is about 819.8833603677.

The spelling of 551132748 in words is "five hundred fifty-one million, one hundred thirty-two thousand, seven hundred forty-eight".