61321425 has 48 divisors (see below), whose sum is σ = 111421440. Its totient is φ = 29512000.

The previous prime is 61321369. The next prime is 61321439. The reversal of 61321425 is 52412316.

It is not a de Polignac number, because 61321425 - 2⁶ = 61321361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61321395 and 61321404.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197020 + ... + 197330.

It is an arithmetic number, because the mean of its divisors is an integer number (2321280).

Almost surely, 2^61321425 is an apocalyptic number.

It is an amenable number.

61321425 is a deficient number, since it is larger than the sum of its proper divisors (50100015).

61321425 is a wasteful number, since it uses less digits than its factorization.

61321425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 569 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 61321425 is about 7830.7997675844. The cubic root of 61321425 is about 394.3399219773.

It can be divided in two parts, 6132 and 1425, that added together give a palindrome (7557).

The spelling of 61321425 in words is "sixty-one million, three hundred twenty-one thousand, four hundred twenty-five".