61573404 has 24 divisors (see below), whose sum is σ = 145288080. Its totient is φ = 20293504.

The previous prime is 61573399. The next prime is 61573411. The reversal of 61573404 is 40437516.

61573404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27759 + ... + 29894.

It is an arithmetic number, because the mean of its divisors is an integer number (6053670).

Almost surely, 2^61573404 is an apocalyptic number.

It is an amenable number.

61573404 is an abundant number, since it is smaller than the sum of its proper divisors (83714676).

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

61573404 is a wasteful number, since it uses less digits than its factorization.

61573404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57749 (or 57747 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 61573404 is about 7846.8722431297. The cubic root of 61573404 is about 394.8793179367.

The spelling of 61573404 in words is "sixty-one million, five hundred seventy-three thousand, four hundred four".