61244625 has 64 divisors (see below), whose sum is σ = 116363520. Its totient is φ = 28339200.

The previous prime is 61244609. The next prime is 61244629. The reversal of 61244625 is 52644216.

It is not a de Polignac number, because 61244625 - 2⁴ = 61244609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61244592 and 61244601.

It is not an unprimeable number, because it can be changed into a prime (61244629) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82506 + ... + 83244.

It is an arithmetic number, because the mean of its divisors is an integer number (1818180).

Almost surely, 2^61244625 is an apocalyptic number.

61244625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61244625 is a deficient number, since it is larger than the sum of its proper divisors (55118895).

61244625 is a wasteful number, since it uses less digits than its factorization.

61244625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 777 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 61244625 is about 7825.8945175616. The cubic root of 61244625 is about 394.1752271849.

The spelling of 61244625 in words is "sixty-one million, two hundred forty-four thousand, six hundred twenty-five".