61360257 has 16 divisors (see below), whose sum is σ = 93977600. Its totient is φ = 34884432.

The previous prime is 61360241. The next prime is 61360261. The reversal of 61360257 is 75206316.

It is not a de Polignac number, because 61360257 - 2⁴ = 61360241 is a prime.

It is a super-2 number, since 2×61360257² = 7530162278212098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61360217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3163 + ... + 11520.

It is an arithmetic number, because the mean of its divisors is an integer number (5873600).

Almost surely, 2^61360257 is an apocalyptic number.

It is an amenable number.

61360257 is a deficient number, since it is larger than the sum of its proper divisors (32617343).

61360257 is a wasteful number, since it uses less digits than its factorization.

61360257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14892.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 61360257 is about 7833.2788154131. The cubic root of 61360257 is about 394.4231434433.

The spelling of 61360257 in words is "sixty-one million, three hundred sixty thousand, two hundred fifty-seven".