1356624425 has 48 divisors (see below), whose sum is σ = 1880681712. Its totient is φ = 964224000.

The previous prime is 1356624421. The next prime is 1356624457. The reversal of 1356624425 is 5244266531.

It can be written as a sum of positive squares in 24 ways, for example, as 817502464 + 539121961 = 28592^2 + 23219^2 .

It is not a de Polignac number, because 1356624425 - 2² = 1356624421 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1356624421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1213967 + ... + 1215083.

It is an arithmetic number, because the mean of its divisors is an integer number (39180869).

Almost surely, 2^1356624425 is an apocalyptic number.

It is an amenable number.

1356624425 is a deficient number, since it is larger than the sum of its proper divisors (524057287).

1356624425 is a wasteful number, since it uses less digits than its factorization.

1356624425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278 (or 1273 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 1356624425 is about 36832.3828308732. The cubic root of 1356624425 is about 1107.0142481996.

The spelling of 1356624425 in words is "one billion, three hundred fifty-six million, six hundred twenty-four thousand, four hundred twenty-five".