12557450 has 12 divisors (see below), whose sum is σ = 23356950. Its totient is φ = 5022960.

The previous prime is 12557437. The next prime is 12557453. The reversal of 12557450 is 5475521.

It can be written as a sum of positive squares in 3 ways, for example, as 11296321 + 1261129 = 3361^2 + 1123^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12557453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125525 + ... + 125624.

Almost surely, 2^12557450 is an apocalyptic number.

12557450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12557450 is a deficient number, since it is larger than the sum of its proper divisors (10799500).

12557450 is a wasteful number, since it uses less digits than its factorization.

12557450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251161 (or 251156 counting only the distinct ones).

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

The square root of 12557450 is about 3543.6492490087. The cubic root of 12557450 is about 232.4344440758.

It can be divided in two parts, 125 and 57450, that added together give a palindrome (57575).

The spelling of 12557450 in words is "twelve million, five hundred fifty-seven thousand, four hundred fifty".