53617651 has 2 divisors, whose sum is σ = 53617652. Its totient is φ = 53617650.

The previous prime is 53617589. The next prime is 53617657. The reversal of 53617651 is 15671635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53617651 - 2¹⁷ = 53486579 is a prime.

It is not a weakly prime, because it can be changed into another prime (53617657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26808825 + 26808826.

It is an arithmetic number, because the mean of its divisors is an integer number (26808826).

Almost surely, 2^53617651 is an apocalyptic number.

53617651 is a deficient number, since it is larger than the sum of its proper divisors (1).

53617651 is an equidigital number, since it uses as much as digits as its factorization.

53617651 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 53617651 is about 7322.4074592992. The cubic root of 53617651 is about 377.0821093849.

The spelling of 53617651 in words is "fifty-three million, six hundred seventeen thousand, six hundred fifty-one".