61357651 has 2 divisors, whose sum is σ = 61357652. Its totient is φ = 61357650.

The previous prime is 61357633. The next prime is 61357657. The reversal of 61357651 is 15675316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61357651 - 2⁵ = 61357619 is a prime.

It is a super-2 number, since 2×61357651² = 7529522672475602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61357657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30678825 + 30678826.

It is an arithmetic number, because the mean of its divisors is an integer number (30678826).

Almost surely, 2^61357651 is an apocalyptic number.

61357651 is a deficient number, since it is larger than the sum of its proper divisors (1).

61357651 is an equidigital number, since it uses as much as digits as its factorization.

61357651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 34.

The square root of 61357651 is about 7833.1124720637. The cubic root of 61357651 is about 394.4175595833.

The spelling of 61357651 in words is "sixty-one million, three hundred fifty-seven thousand, six hundred fifty-one".