61422224525 has 12 divisors (see below), whose sum is σ = 76444613184. Its totient is φ = 48956454000.

The previous prime is 61422224519. The next prime is 61422224557. The reversal of 61422224525 is 52542222416.

It is a happy number.

It is not a de Polignac number, because 61422224525 - 2²² = 61418030221 is a prime.

It is a super-2 number, since 2×61422224525² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 4526231 + ... + 4539780.

It is an arithmetic number, because the mean of its divisors is an integer number (6370384432).

Almost surely, 2^61422224525 is an apocalyptic number.

It is an amenable number.

61422224525 is a deficient number, since it is larger than the sum of its proper divisors (15022388659).

61422224525 is a wasteful number, since it uses less digits than its factorization.

61422224525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9066292 (or 9066287 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The spelling of 61422224525 in words is "sixty-one billion, four hundred twenty-two million, two hundred twenty-four thousand, five hundred twenty-five".