61295960251 has 4 divisors (see below), whose sum is σ = 61390699632. Its totient is φ = 61201220872.

The previous prime is 61295960237. The next prime is 61295960269. The reversal of 61295960251 is 15206959216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61295960251 - 2⁷ = 61295960123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61295930251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47368720 + ... + 47370013.

It is an arithmetic number, because the mean of its divisors is an integer number (15347674908).

Almost surely, 2^61295960251 is an apocalyptic number.

61295960251 is a deficient number, since it is larger than the sum of its proper divisors (94739381).

61295960251 is an equidigital number, since it uses as much as digits as its factorization.

61295960251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94739380.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 61295960251 in words is "sixty-one billion, two hundred ninety-five million, nine hundred sixty thousand, two hundred fifty-one".