1557073325 has 12 divisors (see below), whose sum is σ = 1934816640. Its totient is φ = 1243048560.

The previous prime is 1557073291. The next prime is 1557073327. The reversal of 1557073325 is 5233707551.

It is not a de Polignac number, because 1557073325 - 2⁶ = 1557073261 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1557073327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53039 + ... + 76988.

It is an arithmetic number, because the mean of its divisors is an integer number (161234720).

Almost surely, 2^1557073325 is an apocalyptic number.

It is an amenable number.

1557073325 is a deficient number, since it is larger than the sum of its proper divisors (377743315).

1557073325 is a wasteful number, since it uses less digits than its factorization.

1557073325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130516 (or 130511 counting only the distinct ones).

The product of its (nonzero) digits is 110250, while the sum is 38.

The square root of 1557073325 is about 39459.7684357118. The cubic root of 1557073325 is about 1159.0522691580.

The spelling of 1557073325 in words is "one billion, five hundred fifty-seven million, seventy-three thousand, three hundred twenty-five".