125704057 has 4 divisors (see below), whose sum is σ = 132320080. Its totient is φ = 119088036.

The previous prime is 125704013. The next prime is 125704079. The reversal of 125704057 is 750407521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 750407521 = 661 ⋅1135261.

It is a cyclic number.

It is not a de Polignac number, because 125704057 - 2¹⁵ = 125671289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125704087) 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, 3307983 + ... + 3308020.

It is an arithmetic number, because the mean of its divisors is an integer number (33080020).

Almost surely, 2^125704057 is an apocalyptic number.

It is an amenable number.

125704057 is a deficient number, since it is larger than the sum of its proper divisors (6616023).

125704057 is an equidigital number, since it uses as much as digits as its factorization.

125704057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6616022.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 125704057 is about 11211.7820617420. The cubic root of 125704057 is about 500.9369856855.

The spelling of 125704057 in words is "one hundred twenty-five million, seven hundred four thousand, fifty-seven".