61100525 has 6 divisors (see below), whose sum is σ = 75764682. Its totient is φ = 48880400.

The previous prime is 61100509. The next prime is 61100539. The reversal of 61100525 is 52500116.

It can be written as a sum of positive squares in 3 ways, for example, as 88804 + 61011721 = 298^2 + 7811^2 .

It is not a de Polignac number, because 61100525 - 2⁴ = 61100509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61100497 and 61100506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1221986 + ... + 1222035.

It is an arithmetic number, because the mean of its divisors is an integer number (12627447).

Almost surely, 2^61100525 is an apocalyptic number.

It is an amenable number.

61100525 is a deficient number, since it is larger than the sum of its proper divisors (14664157).

61100525 is a wasteful number, since it uses less digits than its factorization.

61100525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444031 (or 2444026 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 61100525 is about 7816.6824804389. The cubic root of 61100525 is about 393.8658380941.

The spelling of 61100525 in words is "sixty-one million, one hundred thousand, five hundred twenty-five".