25512214021099 has 16 divisors (see below), whose sum is σ = 27518660072064. Its totient is φ = 23512064284800.

The previous prime is 25512214021081. The next prime is 25512214021103. The reversal of 25512214021099 is 99012041221552.

It is not a de Polignac number, because 25512214021099 - 2¹⁷ = 25512213890027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25512214021199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40384929 + ... + 41011789.

It is an arithmetic number, because the mean of its divisors is an integer number (1719916254504).

Almost surely, 2^{25512214021099} is an apocalyptic number.

25512214021099 is a deficient number, since it is larger than the sum of its proper divisors (2006446050965).

25512214021099 is a wasteful number, since it uses less digits than its factorization.

25512214021099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631878.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 25512214021099 in words is "twenty-five trillion, five hundred twelve billion, two hundred fourteen million, twenty-one thousand, ninety-nine".