25353438 has 16 divisors (see below), whose sum is σ = 55316736. Its totient is φ = 7682840.

The previous prime is 25353437. The next prime is 25353469. The reversal of 25353438 is 83435352.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 25353399 and 25353408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25353431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192006 + ... + 192137.

It is an arithmetic number, because the mean of its divisors is an integer number (3457296).

Almost surely, 2^25353438 is an apocalyptic number.

25353438 is an abundant number, since it is smaller than the sum of its proper divisors (29963298).

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

25353438 is a wasteful number, since it uses less digits than its factorization.

25353438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384159.

The product of its digits is 43200, while the sum is 33.

The square root of 25353438 is about 5035.2197568726. The cubic root of 25353438 is about 293.7732760793.

The spelling of 25353438 in words is "twenty-five million, three hundred fifty-three thousand, four hundred thirty-eight".