61522274502 has 24 divisors (see below), whose sum is σ = 143551974384. Its totient is φ = 18929930544.

The previous prime is 61522274483. The next prime is 61522274503. The reversal of 61522274502 is 20547222516.

61522274502 is a `hidden beast` number, since 61 + 5 + 2 + 22 + 74 + 502 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61522274503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131457618 + ... + 131458085.

It is an arithmetic number, because the mean of its divisors is an integer number (5981332266).

Almost surely, 2^61522274502 is an apocalyptic number.

61522274502 is an abundant number, since it is smaller than the sum of its proper divisors (82029699882).

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

61522274502 is a wasteful number, since it uses less digits than its factorization.

61522274502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262915724 (or 262915721 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 61522274502 in words is "sixty-one billion, five hundred twenty-two million, two hundred seventy-four thousand, five hundred two".