54540513251 has 24 divisors (see below), whose sum is σ = 66820178880. Its totient is φ = 44264746512.

The previous prime is 54540513173. The next prime is 54540513257. The reversal of 54540513251 is 15231504545.

It is not a de Polignac number, because 54540513251 - 2¹⁴ = 54540496867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54540513257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1835156 + ... + 1864638.

It is an arithmetic number, because the mean of its divisors is an integer number (2784174120).

Almost surely, 2^54540513251 is an apocalyptic number.

54540513251 is a deficient number, since it is larger than the sum of its proper divisors (12279665629).

54540513251 is a wasteful number, since it uses less digits than its factorization.

54540513251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31503 (or 31496 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 54540513251 in words is "fifty-four billion, five hundred forty million, five hundred thirteen thousand, two hundred fifty-one".