25415551203155 has 16 divisors (see below), whose sum is σ = 32293096485120. Its totient is φ = 19136180278272.

The previous prime is 25415551203149. The next prime is 25415551203173. The reversal of 25415551203155 is 55130215551452.

It is a cyclic number.

It is not a de Polignac number, because 25415551203155 - 2⁴ = 25415551203139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5298206 + ... + 8882684.

It is an arithmetic number, because the mean of its divisors is an integer number (2018318530320).

Almost surely, 2^{25415551203155} is an apocalyptic number.

25415551203155 is a deficient number, since it is larger than the sum of its proper divisors (6877545281965).

25415551203155 is a wasteful number, since it uses less digits than its factorization.

25415551203155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667918.

The product of its (nonzero) digits is 750000, while the sum is 44.

The spelling of 25415551203155 in words is "twenty-five trillion, four hundred fifteen billion, five hundred fifty-one million, two hundred three thousand, one hundred fifty-five".