15000400255 has 8 divisors (see below), whose sum is σ = 18247062672. Its totient is φ = 11835931968.

The previous prime is 15000400243. The next prime is 15000400267. The reversal of 15000400255 is 55200400051.

It is an interprime number because it is at equal distance from previous prime (15000400243) and next prime (15000400267).

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

It is a cyclic number.

It is not a de Polignac number, because 15000400255 - 2⁷ = 15000400127 is a prime.

It is a Duffinian number.

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, 20548129 + ... + 20548858.

It is an arithmetic number, because the mean of its divisors is an integer number (2280882834).

Almost surely, 2^15000400255 is an apocalyptic number.

15000400255 is a deficient number, since it is larger than the sum of its proper divisors (3246662417).

15000400255 is an equidigital number, since it uses as much as digits as its factorization.

15000400255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41097065.

The product of its (nonzero) digits is 1000, while the sum is 22.

The spelling of 15000400255 in words is "fifteen billion, four hundred thousand, two hundred fifty-five".