1956412825 has 6 divisors (see below), whose sum is σ = 2425951934. Its totient is φ = 1565130240.

The previous prime is 1956412813. The next prime is 1956412841. The reversal of 1956412825 is 5282146591.

It can be written as a sum of positive squares in 3 ways, for example, as 358572096 + 1597840729 = 18936^2 + 39973^2 .

It is not a de Polignac number, because 1956412825 - 2²¹ = 1954315673 is a prime.

It is a super-2 number, since 2×1956412825² = 7655102283648961250, which contains 22 as substring.

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, 39128232 + ... + 39128281.

Almost surely, 2^1956412825 is an apocalyptic number.

It is an amenable number.

1956412825 is a deficient number, since it is larger than the sum of its proper divisors (469539109).

1956412825 is an equidigital number, since it uses as much as digits as its factorization.

1956412825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78256523 (or 78256518 counting only the distinct ones).

The product of its digits is 172800, while the sum is 43.

The square root of 1956412825 is about 44231.3556767142. The cubic root of 1956412825 is about 1250.7010094618.

The spelling of 1956412825 in words is "one billion, nine hundred fifty-six million, four hundred twelve thousand, eight hundred twenty-five".