61452657 has 12 divisors (see below), whose sum is σ = 101445760. Its totient is φ = 35115768.

The previous prime is 61452649. The next prime is 61452661. The reversal of 61452657 is 75625416.

It is a happy number.

It is not a de Polignac number, because 61452657 - 2³ = 61452649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61452607) 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, 487657 + ... + 487782.

Almost surely, 2^61452657 is an apocalyptic number.

It is an amenable number.

61452657 is a deficient number, since it is larger than the sum of its proper divisors (39993103).

61452657 is a wasteful number, since it uses less digits than its factorization.

61452657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975452 (or 975449 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 61452657 is about 7839.1745101127. The cubic root of 61452657 is about 394.6210262531.

The spelling of 61452657 in words is "sixty-one million, four hundred fifty-two thousand, six hundred fifty-seven".