55458743940 has 144 divisors (see below), whose sum is σ = 182791365120. Its totient is φ = 13558648320.

The previous prime is 55458743911. The next prime is 55458743941. The reversal of 55458743940 is 4934785455.

It is a happy number.

55458743940 is a `hidden beast` number, since 5 + 54 + 587 + 4 + 3 + 9 + 4 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (55458743941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155529 + ... + 367568.

It is an arithmetic number, because the mean of its divisors is an integer number (1269384480).

Almost surely, 2^55458743940 is an apocalyptic number.

It is an amenable number.

55458743940 is an abundant number, since it is smaller than the sum of its proper divisors (127332621180).

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

55458743940 is a wasteful number, since it uses less digits than its factorization.

55458743940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523162 (or 523157 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 55458743940 in words is "fifty-five billion, four hundred fifty-eight million, seven hundred forty-three thousand, nine hundred forty".