25470072 has 32 divisors (see below), whose sum is σ = 70750800. Its totient is φ = 8489952.

The previous prime is 25470059. The next prime is 25470077. The reversal of 25470072 is 27007452.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25470077) 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, 58743 + ... + 59174.

Almost surely, 2^25470072 is an apocalyptic number.

It is an amenable number.

25470072 is an abundant number, since it is smaller than the sum of its proper divisors (45280728).

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

25470072 is a wasteful number, since it uses less digits than its factorization.

25470072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117932 (or 117922 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 25470072 is about 5046.7882856328. The cubic root of 25470072 is about 294.2230710197.

The spelling of 25470072 in words is "twenty-five million, four hundred seventy thousand, seventy-two".