25000070 has 16 divisors (see below), whose sum is σ = 45763920. Its totient is φ = 9830304.

The previous prime is 25000069. The next prime is 25000109. The reversal of 25000070 is 7000052.

It is a Curzon number.

It is a congruent number.

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, 20597 + ... + 21776.

It is an arithmetic number, because the mean of its divisors is an integer number (2860245).

Almost surely, 2^25000070 is an apocalyptic number.

25000070 is a deficient number, since it is larger than the sum of its proper divisors (20763850).

25000070 is a wasteful number, since it uses less digits than its factorization.

25000070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42439.

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 25000070 is about 5000.0069999951. The cubic root of 25000070 is about 292.4020467294.

Subtracting from 25000070 its product of nonzero digits (70), we obtain a square (25000000 = 5000²).

The spelling of 25000070 in words is "twenty-five million, seventy", and thus it is an aban number and an uban number.