551253252550 has 96 divisors (see below), whose sum is σ = 1376668387584. Its totient is φ = 158602320000.

The previous prime is 551253252547. The next prime is 551253252581. The reversal of 551253252550 is 55252352155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5456976 + ... + 5557075.

It is an arithmetic number, because the mean of its divisors is an integer number (14340295704).

Almost surely, 2^551253252550 is an apocalyptic number.

551253252550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551253252550 is an abundant number, since it is smaller than the sum of its proper divisors (825415135034).

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

551253252550 is a wasteful number, since it uses less digits than its factorization.

551253252550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11014094 (or 11014089 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 40.

The spelling of 551253252550 in words is "five hundred fifty-one billion, two hundred fifty-three million, two hundred fifty-two thousand, five hundred fifty".