551450072 has 64 divisors (see below), whose sum is σ = 1154227200. Its totient is φ = 245877120.

The previous prime is 551450069. The next prime is 551450077. The reversal of 551450072 is 270054155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551450077) 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, 172763 + ... + 175925.

It is an arithmetic number, because the mean of its divisors is an integer number (18034800).

Almost surely, 2^551450072 is an apocalyptic number.

It is an amenable number.

551450072 is an abundant number, since it is smaller than the sum of its proper divisors (602777128).

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

551450072 is a wasteful number, since it uses less digits than its factorization.

551450072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256 (or 3252 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 551450072 is about 23482.9740876236. The cubic root of 551450072 is about 820.0406840810.

The spelling of 551450072 in words is "five hundred fifty-one million, four hundred fifty thousand, seventy-two".