61103725 has 24 divisors (see below), whose sum is σ = 78923520. Its totient is φ = 46872000.

The previous prime is 61103711. The next prime is 61103767. The reversal of 61103725 is 52730116.

It is not a de Polignac number, because 61103725 - 2⁷ = 61103597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 61103725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196320 + ... + 196630.

It is an arithmetic number, because the mean of its divisors is an integer number (3288480).

Almost surely, 2^61103725 is an apocalyptic number.

It is an amenable number.

61103725 is a deficient number, since it is larger than the sum of its proper divisors (17819795).

61103725 is a wasteful number, since it uses less digits than its factorization.

61103725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 61103725 is about 7816.8871681763. The cubic root of 61103725 is about 393.8727139143.

The spelling of 61103725 in words is "sixty-one million, one hundred three thousand, seven hundred twenty-five".