61040554 has 8 divisors (see below), whose sum is σ = 93794148. Its totient is φ = 29775840.

The previous prime is 61040543. The next prime is 61040587. The reversal of 61040554 is 45504016.

It can be written as a sum of positive squares in 2 ways, for example, as 59706529 + 1334025 = 7727^2 + 1155^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372117 + ... + 372280.

Almost surely, 2^61040554 is an apocalyptic number.

61040554 is a deficient number, since it is larger than the sum of its proper divisors (32753594).

61040554 is a wasteful number, since it uses less digits than its factorization.

61040554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744440.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 61040554 is about 7812.8454483626. The cubic root of 61040554 is about 393.7369343443.

The spelling of 61040554 in words is "sixty-one million, forty thousand, five hundred fifty-four".