25372730 has 16 divisors (see below), whose sum is σ = 45812520. Its totient is φ = 10117632.

The previous prime is 25372729. The next prime is 25372741. The reversal of 25372730 is 3727352.

It can be written as a sum of positive squares in 4 ways, for example, as 15594601 + 9778129 = 3949^2 + 3127^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25372693 and 25372702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395 + ... + 7134.

Almost surely, 2^25372730 is an apocalyptic number.

25372730 is a deficient number, since it is larger than the sum of its proper divisors (20439790).

25372730 is a wasteful number, since it uses less digits than its factorization.

25372730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7873.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 25372730 is about 5037.1350984463. The cubic root of 25372730 is about 293.8477700808.

The spelling of 25372730 in words is "twenty-five million, three hundred seventy-two thousand, seven hundred thirty".