61263625 has 16 divisors (see below), whose sum is σ = 76926096. Its totient is φ = 48710400.

The previous prime is 61263617. The next prime is 61263637. The reversal of 61263625 is 52636216.

It can be written as a sum of positive squares in 8 ways, for example, as 10169721 + 51093904 = 3189^2 + 7148^2 .

It is not a de Polignac number, because 61263625 - 2³ = 61263617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20209 + ... + 23041.

It is an arithmetic number, because the mean of its divisors is an integer number (4807881).

Almost surely, 2^61263625 is an apocalyptic number.

It is an amenable number.

61263625 is a deficient number, since it is larger than the sum of its proper divisors (15662471).

61263625 is a wasteful number, since it uses less digits than its factorization.

61263625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021 (or 3011 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 61263625 is about 7827.1083421657. The cubic root of 61263625 is about 394.2159848023.

The spelling of 61263625 in words is "sixty-one million, two hundred sixty-three thousand, six hundred twenty-five".