61372554 has 16 divisors (see below), whose sum is σ = 123033792. Its totient is φ = 20409408.

The previous prime is 61372541. The next prime is 61372609. The reversal of 61372554 is 45527316.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9214 + ... + 14409.

It is an arithmetic number, because the mean of its divisors is an integer number (7689612).

Almost surely, 2^61372554 is an apocalyptic number.

61372554 is an abundant number, since it is smaller than the sum of its proper divisors (61661238).

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

61372554 is a wasteful number, since it uses less digits than its factorization.

61372554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24061.

The product of its digits is 25200, while the sum is 33.

The square root of 61372554 is about 7834.0636964477. The cubic root of 61372554 is about 394.4494900161.

The spelling of 61372554 in words is "sixty-one million, three hundred seventy-two thousand, five hundred fifty-four".