55028902619 has 4 divisors (see below), whose sum is σ = 55030680144. Its totient is φ = 55027125096.

The previous prime is 55028902613. The next prime is 55028902631. The reversal of 55028902619 is 91620982055.

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

It is a cyclic number.

It is not a de Polignac number, because 55028902619 - 2²⁰ = 55027854043 is a prime.

It is a super-2 number, since 2×55028902619² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55028902613) 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, 841487 + ... + 904520.

It is an arithmetic number, because the mean of its divisors is an integer number (13757670036).

Almost surely, 2^55028902619 is an apocalyptic number.

55028902619 is a deficient number, since it is larger than the sum of its proper divisors (1777525).

55028902619 is a wasteful number, since it uses less digits than its factorization.

55028902619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777524.

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 55028902619 in words is "fifty-five billion, twenty-eight million, nine hundred two thousand, six hundred nineteen".