252103551 has 16 divisors (see below), whose sum is σ = 384422400. Its totient is φ = 143959968.

The previous prime is 252103543. The next prime is 252103561. The reversal of 252103551 is 155301252.

It is a happy number.

It is not a de Polignac number, because 252103551 - 2³ = 252103543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252103531) 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, 36265 + ... + 42653.

It is an arithmetic number, because the mean of its divisors is an integer number (24026400).

Almost surely, 2^252103551 is an apocalyptic number.

252103551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252103551 is a deficient number, since it is larger than the sum of its proper divisors (132318849).

252103551 is a wasteful number, since it uses less digits than its factorization.

252103551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8278.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 252103551 is about 15877.7690813288. The cubic root of 252103551 is about 631.7224644990.

The spelling of 252103551 in words is "two hundred fifty-two million, one hundred three thousand, five hundred fifty-one".