25520053 has 4 divisors (see below), whose sum is σ = 27483148. Its totient is φ = 23556960.

The previous prime is 25520051. The next prime is 25520063. The reversal of 25520053 is 35002552.

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 11992369 + 13527684 = 3463^2 + 3678^2 .

It is a cyclic number.

It is not a de Polignac number, because 25520053 - 2¹ = 25520051 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 (25520051) 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, 981528 + ... + 981553.

It is an arithmetic number, because the mean of its divisors is an integer number (6870787).

Almost surely, 2^25520053 is an apocalyptic number.

It is an amenable number.

25520053 is a deficient number, since it is larger than the sum of its proper divisors (1963095).

25520053 is a wasteful number, since it uses less digits than its factorization.

25520053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963094.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 25520053 is about 5051.7376218485. The cubic root of 25520053 is about 294.4154007295.

The spelling of 25520053 in words is "twenty-five million, five hundred twenty thousand, fifty-three".