157738425 has 24 divisors (see below), whose sum is σ = 280857024. Its totient is φ = 77655360.

The previous prime is 157738421. The next prime is 157738457. The reversal of 157738425 is 524837751.

It is not a de Polignac number, because 157738425 - 2² = 157738421 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157738421) 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, 79917 + ... + 81866.

It is an arithmetic number, because the mean of its divisors is an integer number (11702376).

Almost surely, 2^157738425 is an apocalyptic number.

157738425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157738425 is a deficient number, since it is larger than the sum of its proper divisors (123118599).

157738425 is a wasteful number, since it uses less digits than its factorization.

157738425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161809 (or 161804 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 157738425 is about 12559.3958851531. The cubic root of 157738425 is about 540.3135182138.

The spelling of 157738425 in words is "one hundred fifty-seven million, seven hundred thirty-eight thousand, four hundred twenty-five".