61265730 has 32 divisors (see below), whose sum is σ = 147386304. Its totient is φ = 16298816.

The previous prime is 61265713. The next prime is 61265741. The reversal of 61265730 is 3756216.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 11824 + ... + 16196.

It is an arithmetic number, because the mean of its divisors is an integer number (4605822).

Almost surely, 2^61265730 is an apocalyptic number.

61265730 is an abundant number, since it is smaller than the sum of its proper divisors (86120574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61265730 is a wasteful number, since it uses less digits than its factorization.

61265730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 61265730 is about 7827.2428095722. The cubic root of 61265730 is about 394.2204997987.

The spelling of 61265730 in words is "sixty-one million, two hundred sixty-five thousand, seven hundred thirty".