54021455115 has 32 divisors (see below), whose sum is σ = 88707902976. Its totient is φ = 28063365120.

The previous prime is 54021455107. The next prime is 54021455143. The reversal of 54021455115 is 51155412045.

It is a happy number.

It is not a de Polignac number, because 54021455115 - 2³ = 54021455107 is a prime.

It is a super-2 number, since 2×54021455115² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217174 + ... + 393963.

It is an arithmetic number, because the mean of its divisors is an integer number (2772121968).

Almost surely, 2^54021455115 is an apocalyptic number.

54021455115 is a deficient number, since it is larger than the sum of its proper divisors (34686447861).

54021455115 is a wasteful number, since it uses less digits than its factorization.

54021455115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611299.

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 54021455115 in words is "fifty-four billion, twenty-one million, four hundred fifty-five thousand, one hundred fifteen".