25263481 has 8 divisors (see below), whose sum is σ = 26281728. Its totient is φ = 24258000.

The previous prime is 25263473. The next prime is 25263493. The reversal of 25263481 is 18436252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25263481 - 2³ = 25263473 is a prime.

It is a super-2 number, since 2×25263481² = 1276486944474722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25263431) 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, 951 + ... + 7171.

It is an arithmetic number, because the mean of its divisors is an integer number (3285216).

Almost surely, 2^25263481 is an apocalyptic number.

It is an amenable number.

25263481 is a deficient number, since it is larger than the sum of its proper divisors (1018247).

25263481 is a wasteful number, since it uses less digits than its factorization.

25263481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383.

The product of its digits is 11520, while the sum is 31.

The square root of 25263481 is about 5026.2790411994. The cubic root of 25263481 is about 293.4254168832.

The spelling of 25263481 in words is "twenty-five million, two hundred sixty-three thousand, four hundred eighty-one".