25145254152 has 48 divisors (see below), whose sum is σ = 68216688540. Its totient is φ = 8367602688.

The previous prime is 25145254133. The next prime is 25145254153.

25145254152 is a `hidden beast` number, since 2 + 5 + 1 + 452 + 54 + 152 = 666.

25145254152 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 25050659076 + 94595076 = 158274^2 + 9726^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25145254153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251773 + ... + 337164.

Almost surely, 2^25145254152 is an apocalyptic number.

It is an amenable number.

25145254152 is an abundant number, since it is smaller than the sum of its proper divisors (43071434388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25145254152 is a wasteful number, since it uses less digits than its factorization.

25145254152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589542 (or 589535 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The spelling of 25145254152 in words is "twenty-five billion, one hundred forty-five million, two hundred fifty-four thousand, one hundred fifty-two".