315452550 has 48 divisors (see below), whose sum is σ = 894085632. Its totient is φ = 72103200.

The previous prime is 315452537. The next prime is 315452551. The reversal of 315452550 is 55254513.

It is a happy number.

It is a super-2 number, since 2×315452550² = 199020622603005000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315452551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149166 + ... + 151265.

It is an arithmetic number, because the mean of its divisors is an integer number (18626784).

Almost surely, 2^315452550 is an apocalyptic number.

315452550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

315452550 is an abundant number, since it is smaller than the sum of its proper divisors (578633082).

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

315452550 is a wasteful number, since it uses less digits than its factorization.

315452550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300453 (or 300448 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 315452550 is about 17760.9839254474. The cubic root of 315452550 is about 680.7348960897.

The spelling of 315452550 in words is "three hundred fifteen million, four hundred fifty-two thousand, five hundred fifty".