61425408 has 108 divisors (see below), whose sum is σ = 179966024. Its totient is φ = 18585600.

The previous prime is 61425401. The next prime is 61425443. The reversal of 61425408 is 80452416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61425401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92598 + ... + 93258.

Almost surely, 2^61425408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61425408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89983012).

61425408 is an abundant number, since it is smaller than the sum of its proper divisors (118540616).

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

61425408 is a wasteful number, since it uses less digits than its factorization.

61425408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 677 counting only the distinct ones).

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

The square root of 61425408 is about 7837.4363155307. The cubic root of 61425408 is about 394.5626907332.

The spelling of 61425408 in words is "sixty-one million, four hundred twenty-five thousand, four hundred eight".