25152520511 has 4 divisors (see below), whose sum is σ = 26476337400. Its totient is φ = 23828703624.

The previous prime is 25152520483. The next prime is 25152520537. The reversal of 25152520511 is 11502525152.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25152520511 - 2³⁴ = 7972651327 is a prime.

It is a super-2 number, since 2×25152520511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25152520411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661908416 + ... + 661908453.

It is an arithmetic number, because the mean of its divisors is an integer number (6619084350).

Almost surely, 2^25152520511 is an apocalyptic number.

25152520511 is a deficient number, since it is larger than the sum of its proper divisors (1323816889).

25152520511 is a wasteful number, since it uses less digits than its factorization.

25152520511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323816888.

The product of its (nonzero) digits is 5000, while the sum is 29.

The spelling of 25152520511 in words is "twenty-five billion, one hundred fifty-two million, five hundred twenty thousand, five hundred eleven".