551295072 has 144 divisors (see below), whose sum is σ = 1678989312. Its totient is φ = 177759360.

The previous prime is 551295011. The next prime is 551295109. The reversal of 551295072 is 270592155.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×551295072² = 607852512822970368, which contains 22 as substring.

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

It is a congruent number.

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, 239913 + ... + 242199.

It is an arithmetic number, because the mean of its divisors is an integer number (11659648).

Almost surely, 2^551295072 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 551295072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (839494656).

551295072 is an abundant number, since it is smaller than the sum of its proper divisors (1127694240).

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

551295072 is a wasteful number, since it uses less digits than its factorization.

551295072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343 (or 2323 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 551295072 is about 23479.6735922798. The cubic root of 551295072 is about 819.9638453224.

The spelling of 551295072 in words is "five hundred fifty-one million, two hundred ninety-five thousand, seventy-two".