54615157357619 has 4 divisors (see below), whose sum is σ = 54615184973160. Its totient is φ = 54615129742080.

The previous prime is 54615157357613. The next prime is 54615157357627. The reversal of 54615157357619 is 91675375151645.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54615157357619 is a prime.

It is a super-2 number, since 2×54615157357619² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54615157357613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10591502 + ... + 14879859.

It is an arithmetic number, because the mean of its divisors is an integer number (13653796243290).

Almost surely, 2^{54615157357619} is an apocalyptic number.

54615157357619 is a deficient number, since it is larger than the sum of its proper divisors (27615541).

54615157357619 is a wasteful number, since it uses less digits than its factorization.

54615157357619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27615540.

The product of its digits is 119070000, while the sum is 65.

The spelling of 54615157357619 in words is "fifty-four trillion, six hundred fifteen billion, one hundred fifty-seven million, three hundred fifty-seven thousand, six hundred nineteen".