25140653 has 4 divisors (see below), whose sum is σ = 25177728. Its totient is φ = 25103580.

The previous prime is 25140641. The next prime is 25140677. The reversal of 25140653 is 35604152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25140653 - 2⁶ = 25140589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25143653) 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, 17501 + ... + 18882.

It is an arithmetic number, because the mean of its divisors is an integer number (6294432).

Almost surely, 2^25140653 is an apocalyptic number.

It is an amenable number.

25140653 is a deficient number, since it is larger than the sum of its proper divisors (37075).

25140653 is an equidigital number, since it uses as much as digits as its factorization.

25140653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37074.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 25140653 is about 5014.0455721902. The cubic root of 25140653 is about 292.9491111285.

It can be divided in two parts, 251 and 40653, that multiplied together give a triangular number (10203903 = T₄₅₁₇).

The spelling of 25140653 in words is "twenty-five million, one hundred forty thousand, six hundred fifty-three".