61571125 has 32 divisors (see below), whose sum is σ = 95816448. Its totient is φ = 38376000.

The previous prime is 61571113. The next prime is 61571137. The reversal of 61571125 is 52117516.

It is an interprime number because it is at equal distance from previous prime (61571113) and next prime (61571137).

It is a de Polignac number, because none of the positive numbers 2^k-61571125 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61571093 and 61571102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6427 + ... + 12823.

It is an arithmetic number, because the mean of its divisors is an integer number (2994264).

Almost surely, 2^61571125 is an apocalyptic number.

It is an amenable number.

61571125 is a deficient number, since it is larger than the sum of its proper divisors (34245323).

61571125 is a wasteful number, since it uses less digits than its factorization.

61571125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430 (or 6420 counting only the distinct ones).

The product of its digits is 2100, while the sum is 28.

The square root of 61571125 is about 7846.7270246900. The cubic root of 61571125 is about 394.8744460223.

The spelling of 61571125 in words is "sixty-one million, five hundred seventy-one thousand, one hundred twenty-five".