61452115225 has 48 divisors (see below), whose sum is σ = 79086456000. Its totient is φ = 47340806400.

The previous prime is 61452115177. The next prime is 61452115229. The reversal of 61452115225 is 52251125416.

It is not a de Polignac number, because 61452115225 - 2³¹ = 59304631577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61452115229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24202006 + ... + 24204544.

It is an arithmetic number, because the mean of its divisors is an integer number (1647634500).

Almost surely, 2^61452115225 is an apocalyptic number.

It is an amenable number.

61452115225 is a deficient number, since it is larger than the sum of its proper divisors (17634340775).

61452115225 is a wasteful number, since it uses less digits than its factorization.

61452115225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938 (or 2933 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

The spelling of 61452115225 in words is "sixty-one billion, four hundred fifty-two million, one hundred fifteen thousand, two hundred twenty-five".