156242425 has 6 divisors (see below), whose sum is σ = 193740638. Its totient is φ = 124993920.

The previous prime is 156242413. The next prime is 156242441. The reversal of 156242425 is 524242651.

It can be written as a sum of positive squares in 3 ways, for example, as 17424 + 156225001 = 132^2 + 12499^2 .

It is not a de Polignac number, because 156242425 - 2⁷ = 156242297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3124824 + ... + 3124873.

Almost surely, 2^156242425 is an apocalyptic number.

It is an amenable number.

156242425 is a deficient number, since it is larger than the sum of its proper divisors (37498213).

156242425 is an equidigital number, since it uses as much as digits as its factorization.

156242425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6249707 (or 6249702 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 156242425 is about 12499.6969963276. The cubic root of 156242425 is about 538.5999684512.

The spelling of 156242425 in words is "one hundred fifty-six million, two hundred forty-two thousand, four hundred twenty-five".