925981057 has 4 divisors (see below), whose sum is σ = 926104900. Its totient is φ = 925857216.

The previous prime is 925981039. The next prime is 925981097. The reversal of 925981057 is 750189529.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750189529 = 61 ⋅12298189.

It can be written as a sum of positive squares in 2 ways, for example, as 397165041 + 528816016 = 19929^2 + 22996^2 .

It is a cyclic number.

It is not a de Polignac number, because 925981057 - 2⁷ = 925980929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 925980998 and 925981016.

It is not an unprimeable number, because it can be changed into a prime (925981027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49932 + ... + 65917.

It is an arithmetic number, because the mean of its divisors is an integer number (231526225).

Almost surely, 2^925981057 is an apocalyptic number.

It is an amenable number.

925981057 is a deficient number, since it is larger than the sum of its proper divisors (123843).

925981057 is a wasteful number, since it uses less digits than its factorization.

925981057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123842.

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 925981057 is about 30429.9368550117. The cubic root of 925981057 is about 974.6919235290.

The spelling of 925981057 in words is "nine hundred twenty-five million, nine hundred eighty-one thousand, fifty-seven".