25464942 has 48 divisors (see below), whose sum is σ = 57762432. Its totient is φ = 8407800.

The previous prime is 25464941. The next prime is 25464949. The reversal of 25464942 is 24946452.

25464942 is a `hidden beast` number, since 2 + 5 + 4 + 649 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25464897 and 25464906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25464941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73213 + ... + 73559.

It is an arithmetic number, because the mean of its divisors is an integer number (1203384).

Almost surely, 2^25464942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25464942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28881216).

25464942 is an abundant number, since it is smaller than the sum of its proper divisors (32297490).

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

25464942 is a wasteful number, since it uses less digits than its factorization.

25464942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 503 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 25464942 is about 5046.2800160118. The cubic root of 25464942 is about 294.2033162568.

The spelling of 25464942 in words is "twenty-five million, four hundred sixty-four thousand, nine hundred forty-two".