25057427653 has 4 divisors (see below), whose sum is σ = 25057895980. Its totient is φ = 25056959328.

The previous prime is 25057427623. The next prime is 25057427657. The reversal of 25057427653 is 35672475052.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13608855649 + 11448572004 = 116657^2 + 106998^2 .

It is a cyclic number.

It is not a de Polignac number, because 25057427653 - 2²⁹ = 24520556741 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 (25057427657) 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, 141750 + ... + 264967.

It is an arithmetic number, because the mean of its divisors is an integer number (6264473995).

Almost surely, 2^25057427653 is an apocalyptic number.

It is an amenable number.

25057427653 is a deficient number, since it is larger than the sum of its proper divisors (468327).

25057427653 is an equidigital number, since it uses as much as digits as its factorization.

25057427653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468326.

The product of its (nonzero) digits is 1764000, while the sum is 46.

The spelling of 25057427653 in words is "twenty-five billion, fifty-seven million, four hundred twenty-seven thousand, six hundred fifty-three".