53157345 has 48 divisors (see below), whose sum is σ = 93261120. Its totient is φ = 25764480.

The previous prime is 53157337. The next prime is 53157367. The reversal of 53157345 is 54375135.

It is not a de Polignac number, because 53157345 - 2³ = 53157337 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 748660 + ... + 748730.

It is an arithmetic number, because the mean of its divisors is an integer number (1942940).

Almost surely, 2^53157345 is an apocalyptic number.

It is an amenable number.

53157345 is a deficient number, since it is larger than the sum of its proper divisors (40103775).

53157345 is a wasteful number, since it uses less digits than its factorization.

53157345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 135 counting only the distinct ones).

The product of its digits is 31500, while the sum is 33.

The square root of 53157345 is about 7290.9083796191. The cubic root of 53157345 is about 375.9999269088. Note that the first 4 decimals are identical.

The spelling of 53157345 in words is "fifty-three million, one hundred fifty-seven thousand, three hundred forty-five".