551451252 has 48 divisors (see below), whose sum is σ = 1411510464. Its totient is φ = 166176000.

The previous prime is 551451247. The next prime is 551451259. The reversal of 551451252 is 252154155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551451259) 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, 12352 + ... + 35432.

It is an arithmetic number, because the mean of its divisors is an integer number (29406468).

Almost surely, 2^551451252 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 551451252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705755232).

551451252 is an abundant number, since it is smaller than the sum of its proper divisors (860059212).

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

551451252 is a wasteful number, since it uses less digits than its factorization.

551451252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23280 (or 23278 counting only the distinct ones).

The product of its digits is 10000, while the sum is 30.

The square root of 551451252 is about 23482.9992121960. Note that the first 3 decimals coincide. The cubic root of 551451252 is about 820.0412689918.

The spelling of 551451252 in words is "five hundred fifty-one million, four hundred fifty-one thousand, two hundred fifty-two".