61252705554 has 32 divisors (see below), whose sum is σ = 124729921536. Its totient is φ = 20047979520.

The previous prime is 61252705541. The next prime is 61252705621. The reversal of 61252705554 is 45550725216.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66159 + ... + 356205.

It is an arithmetic number, because the mean of its divisors is an integer number (3897810048).

Almost surely, 2^61252705554 is an apocalyptic number.

61252705554 is an abundant number, since it is smaller than the sum of its proper divisors (63477215982).

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

61252705554 is a wasteful number, since it uses less digits than its factorization.

61252705554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290690.

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 61252705554 in words is "sixty-one billion, two hundred fifty-two million, seven hundred five thousand, five hundred fifty-four".