61077070025 has 12 divisors (see below), whose sum is σ = 80190600732. Its totient is φ = 45987440640.

The previous prime is 61077070007. The next prime is 61077070031. The reversal of 61077070025 is 52007077016.

It can be written as a sum of positive squares in 6 ways, for example, as 947654656 + 60129415369 = 30784^2 + 245213^2 .

It is not a de Polignac number, because 61077070025 - 2⁶ = 61077069961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71854952 + ... + 71855801.

It is an arithmetic number, because the mean of its divisors is an integer number (6682550061).

Almost surely, 2^61077070025 is an apocalyptic number.

It is an amenable number.

61077070025 is a deficient number, since it is larger than the sum of its proper divisors (19113530707).

61077070025 is a wasteful number, since it uses less digits than its factorization.

61077070025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143710780 (or 143710775 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 35.

The spelling of 61077070025 in words is "sixty-one billion, seventy-seven million, seventy thousand, twenty-five".