61225751572 has 12 divisors (see below), whose sum is σ = 107340946720. Its totient is φ = 30556909656.

The previous prime is 61225751557. The next prime is 61225751599. The reversal of 61225751572 is 27515752216.

It is a congruent number.

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, 13989072 + ... + 13993447.

Almost surely, 2^61225751572 is an apocalyptic number.

It is an amenable number.

61225751572 is a deficient number, since it is larger than the sum of its proper divisors (46115195148).

61225751572 is a wasteful number, since it uses less digits than its factorization.

61225751572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27983070 (or 27983068 counting only the distinct ones).

The product of its digits is 294000, while the sum is 43.

The spelling of 61225751572 in words is "sixty-one billion, two hundred twenty-five million, seven hundred fifty-one thousand, five hundred seventy-two".