61432225 has 24 divisors (see below), whose sum is σ = 80644640. Its totient is φ = 46293120.

The previous prime is 61432213. The next prime is 61432249. The reversal of 61432225 is 52223416.

It is not a de Polignac number, because 61432225 - 2⁵ = 61432193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 61432225.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134197 + ... + 134653.

Almost surely, 2^61432225 is an apocalyptic number.

It is an amenable number.

61432225 is a deficient number, since it is larger than the sum of its proper divisors (19212415).

61432225 is a wasteful number, since it uses less digits than its factorization.

61432225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 764 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 61432225 is about 7837.8712033307. The cubic root of 61432225 is about 394.5772864000.

The spelling of 61432225 in words is "sixty-one million, four hundred thirty-two thousand, two hundred twenty-five".