61012544 has 14 divisors (see below), whose sum is σ = 121071894. Its totient is φ = 30506240.

The previous prime is 61012543. The next prime is 61012547. The reversal of 61012544 is 44521016.

It can be written as a sum of positive squares in only one way, i.e., 59474944 + 1537600 = 7712^2 + 1240^2 .

It is not an unprimeable number, because it can be changed into a prime (61012543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 476597 + ... + 476724.

Almost surely, 2^61012544 is an apocalyptic number.

61012544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61012544 is a deficient number, since it is larger than the sum of its proper divisors (60059350).

61012544 is an equidigital number, since it uses as much as digits as its factorization.

61012544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953333 (or 953323 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 61012544 is about 7811.0526819373. The cubic root of 61012544 is about 393.6766997508.

The spelling of 61012544 in words is "sixty-one million, twelve thousand, five hundred forty-four".