15402940055 has 8 divisors (see below), whose sum is σ = 18484218144. Its totient is φ = 12321892000.

The previous prime is 15402940043. The next prime is 15402940171. The reversal of 15402940055 is 55004920451.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15402940055 - 2²² = 15398745751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15402939997 and 15402940024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176030 + ... + 248580.

It is an arithmetic number, because the mean of its divisors is an integer number (2310527268).

Almost surely, 2^15402940055 is an apocalyptic number.

15402940055 is a deficient number, since it is larger than the sum of its proper divisors (3081278089).

15402940055 is an equidigital number, since it uses as much as digits as its factorization.

15402940055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115017.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 15402940055 in words is "fifteen billion, four hundred two million, nine hundred forty thousand, fifty-five".