1325577057 has 24 divisors (see below), whose sum is σ = 2176942176. Its totient is φ = 712914048.

The previous prime is 1325577053. The next prime is 1325577073. The reversal of 1325577057 is 7507755231.

It is a happy number.

It is not a de Polignac number, because 1325577057 - 2² = 1325577053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1325577053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262723 + ... + 267720.

It is an arithmetic number, because the mean of its divisors is an integer number (90705924).

Almost surely, 2^1325577057 is an apocalyptic number.

1325577057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1325577057 is a deficient number, since it is larger than the sum of its proper divisors (851365119).

1325577057 is a wasteful number, since it uses less digits than its factorization.

1325577057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530477 (or 530470 counting only the distinct ones).

The product of its (nonzero) digits is 257250, while the sum is 42.

The square root of 1325577057 is about 36408.4750710600. The cubic root of 1325577057 is about 1098.5040427872.

The spelling of 1325577057 in words is "one billion, three hundred twenty-five million, five hundred seventy-seven thousand, fifty-seven".