25523403151 has 4 divisors (see below), whose sum is σ = 25525391112. Its totient is φ = 25521415192.

The previous prime is 25523403119. The next prime is 25523403167. The reversal of 25523403151 is 15130432552.

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 25523403151 - 2⁵ = 25523403119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25523443151) 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, 974596 + ... + 1000441.

It is an arithmetic number, because the mean of its divisors is an integer number (6381347778).

Almost surely, 2^25523403151 is an apocalyptic number.

25523403151 is a deficient number, since it is larger than the sum of its proper divisors (1987961).

25523403151 is a wasteful number, since it uses less digits than its factorization.

25523403151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987960.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 25523403151 in words is "twenty-five billion, five hundred twenty-three million, four hundred three thousand, one hundred fifty-one".