61257325 has 6 divisors (see below), whose sum is σ = 75959114. Its totient is φ = 49005840.

The previous prime is 61257323. The next prime is 61257337. The reversal of 61257325 is 52375216.

It can be written as a sum of positive squares in 3 ways, for example, as 2566404 + 58690921 = 1602^2 + 7661^2 .

It is not a de Polignac number, because 61257325 - 2¹ = 61257323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61257323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1225122 + ... + 1225171.

Almost surely, 2^61257325 is an apocalyptic number.

It is an amenable number.

61257325 is a deficient number, since it is larger than the sum of its proper divisors (14701789).

61257325 is a wasteful number, since it uses less digits than its factorization.

61257325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450303 (or 2450298 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 61257325 is about 7826.7058843424. The cubic root of 61257325 is about 394.2024713684.

The spelling of 61257325 in words is "sixty-one million, two hundred fifty-seven thousand, three hundred twenty-five".