61144325 has 72 divisors (see below), whose sum is σ = 93509640. Its totient is φ = 39424000.

The previous prime is 61144319. The next prime is 61144331. The reversal of 61144325 is 52344116.

It is an interprime number because it is at equal distance from previous prime (61144319) and next prime (61144331).

It can be written as a sum of positive squares in 12 ways, for example, as 22791076 + 38353249 = 4774^2 + 6193^2 .

It is not a de Polignac number, because 61144325 - 2⁴ = 61144309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61144294 and 61144303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1491305 + ... + 1491345.

It is an arithmetic number, because the mean of its divisors is an integer number (1298745).

Almost surely, 2^61144325 is an apocalyptic number.

It is an amenable number.

61144325 is a deficient number, since it is larger than the sum of its proper divisors (32365315).

61144325 is a wasteful number, since it uses less digits than its factorization.

61144325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 103 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 61144325 is about 7819.4836786069. The cubic root of 61144325 is about 393.9599300468.

The spelling of 61144325 in words is "sixty-one million, one hundred forty-four thousand, three hundred twenty-five".