53601891731 has 2 divisors, whose sum is σ = 53601891732. Its totient is φ = 53601891730.

The previous prime is 53601891709. The next prime is 53601891751. The reversal of 53601891731 is 13719810635.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53601891731 is a prime.

It is a super-2 number, since 2×53601891731² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53601891751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26800945865 + 26800945866.

It is an arithmetic number, because the mean of its divisors is an integer number (26800945866).

Almost surely, 2^53601891731 is an apocalyptic number.

53601891731 is a deficient number, since it is larger than the sum of its proper divisors (1).

53601891731 is an equidigital number, since it uses as much as digits as its factorization.

53601891731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 53601891731 in words is "fifty-three billion, six hundred one million, eight hundred ninety-one thousand, seven hundred thirty-one".