54840195731 has 2 divisors, whose sum is σ = 54840195732. Its totient is φ = 54840195730.

The previous prime is 54840195713. The next prime is 54840195749. The reversal of 54840195731 is 13759104845.

Together with previous prime (54840195713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (54840195713) and next prime (54840195749).

It is a cyclic number.

It is not a de Polignac number, because 54840195731 - 2¹⁴ = 54840179347 is a prime.

It is a super-2 number, since 2×54840195731² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54840195131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27420097865 + 27420097866.

It is an arithmetic number, because the mean of its divisors is an integer number (27420097866).

Almost surely, 2^54840195731 is an apocalyptic number.

54840195731 is a deficient number, since it is larger than the sum of its proper divisors (1).

54840195731 is an equidigital number, since it uses as much as digits as its factorization.

54840195731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 54840195731 in words is "fifty-four billion, eight hundred forty million, one hundred ninety-five thousand, seven hundred thirty-one".