61102625 has 8 divisors (see below), whose sum is σ = 76256232. Its totient is φ = 48882000.

The previous prime is 61102589. The next prime is 61102627. The reversal of 61102625 is 52620116.

It can be written as a sum of positive squares in 4 ways, for example, as 12769 + 61089856 = 113^2 + 7816^2 .

It is not a de Polignac number, because 61102625 - 2¹² = 61098529 is a prime.

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 61102625.

It is not an unprimeable number, because it can be changed into a prime (61102627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244286 + ... + 244535.

It is an arithmetic number, because the mean of its divisors is an integer number (9532029).

Almost surely, 2^61102625 is an apocalyptic number.

It is an amenable number.

61102625 is a deficient number, since it is larger than the sum of its proper divisors (15153607).

61102625 is an equidigital number, since it uses as much as digits as its factorization.

61102625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488836 (or 488826 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 61102625 is about 7816.8168073711. The cubic root of 61102625 is about 393.8703503782.

The spelling of 61102625 in words is "sixty-one million, one hundred two thousand, six hundred twenty-five".