54949154540 has 24 divisors (see below), whose sum is σ = 131877971232. Its totient is φ = 18839710080.

The previous prime is 54949154489. The next prime is 54949154549. The reversal of 54949154540 is 4545194945.

It is a happy number.

It is a super-2 number, since 2×54949154540² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54949154549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196246841 + ... + 196247120.

It is an arithmetic number, because the mean of its divisors is an integer number (5494915468).

Almost surely, 2^54949154540 is an apocalyptic number.

It is an amenable number.

54949154540 is an abundant number, since it is smaller than the sum of its proper divisors (76928816692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54949154540 is a wasteful number, since it uses less digits than its factorization.

54949154540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392493977 (or 392493975 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 50.

The spelling of 54949154540 in words is "fifty-four billion, nine hundred forty-nine million, one hundred fifty-four thousand, five hundred forty".