61604572 has 12 divisors (see below), whose sum is σ = 108190936. Its totient is φ = 30692880.

The previous prime is 61604561. The next prime is 61604579. The reversal of 61604572 is 27540616.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61604579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26079 + ... + 28342.

Almost surely, 2^61604572 is an apocalyptic number.

It is an amenable number.

61604572 is a deficient number, since it is larger than the sum of its proper divisors (46586364).

61604572 is a wasteful number, since it uses less digits than its factorization.

61604572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54708 (or 54706 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 61604572 is about 7848.8580061051. The cubic root of 61604572 is about 394.9459350240.

The spelling of 61604572 in words is "sixty-one million, six hundred four thousand, five hundred seventy-two".