61318375 has 16 divisors (see below), whose sum is σ = 76898016. Its totient is φ = 48816000.

The previous prime is 61318351. The next prime is 61318379. The reversal of 61318375 is 57381316.

It is not a de Polignac number, because 61318375 - 2⁵ = 61318343 is a prime.

It is a super-2 number, since 2×61318375² = 7519886225281250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61318375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61318379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27295 + ... + 29455.

It is an arithmetic number, because the mean of its divisors is an integer number (4806126).

Almost surely, 2^61318375 is an apocalyptic number.

61318375 is a deficient number, since it is larger than the sum of its proper divisors (15579641).

61318375 is a wasteful number, since it uses less digits than its factorization.

61318375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403 (or 2393 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 61318375 is about 7830.6050213250. The cubic root of 61318375 is about 394.3333839867. Note that the first 4 decimals are identical.

The spelling of 61318375 in words is "sixty-one million, three hundred eighteen thousand, three hundred seventy-five".