61575337225 has 24 divisors (see below), whose sum is σ = 80300574720. Its totient is φ = 46747451520.

The previous prime is 61575337223. The next prime is 61575337249. The reversal of 61575337225 is 52273357516.

It is a happy number.

It is not a de Polignac number, because 61575337225 - 2¹ = 61575337223 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61575337223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348580 + ... + 494629.

It is an arithmetic number, because the mean of its divisors is an integer number (3345857280).

Almost surely, 2^61575337225 is an apocalyptic number.

It is an amenable number.

61575337225 is a deficient number, since it is larger than the sum of its proper divisors (18725237495).

61575337225 is a wasteful number, since it uses less digits than its factorization.

61575337225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843369 (or 843364 counting only the distinct ones).

The product of its digits is 1323000, while the sum is 46.

The spelling of 61575337225 in words is "sixty-one billion, five hundred seventy-five million, three hundred thirty-seven thousand, two hundred twenty-five".