61425228 has 24 divisors (see below), whose sum is σ = 143877888. Its totient is φ = 20396176.

The previous prime is 61425223. The next prime is 61425239. The reversal of 61425228 is 82252416.

It is a junction number, because it is equal to n+sod(n) for n = 61425195 and 61425204.

It is not an unprimeable number, because it can be changed into a prime (61425223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6576 + ... + 12887.

It is an arithmetic number, because the mean of its divisors is an integer number (5994912).

Almost surely, 2^61425228 is an apocalyptic number.

It is an amenable number.

61425228 is an abundant number, since it is smaller than the sum of its proper divisors (82452660).

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

61425228 is a wasteful number, since it uses less digits than its factorization.

61425228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19733 (or 19731 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 61425228 is about 7837.4248321754. The cubic root of 61425228 is about 394.5623053262.

The spelling of 61425228 in words is "sixty-one million, four hundred twenty-five thousand, two hundred twenty-eight".