25140858 has 32 divisors (see below), whose sum is σ = 53778816. Its totient is φ = 7807488.

The previous prime is 25140851. The next prime is 25140859. The reversal of 25140858 is 85804152.

It is not an unprimeable number, because it can be changed into a prime (25140851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9310 + ... + 11702.

It is an arithmetic number, because the mean of its divisors is an integer number (1680588).

Almost surely, 2^25140858 is an apocalyptic number.

25140858 is an abundant number, since it is smaller than the sum of its proper divisors (28637958).

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

25140858 is a wasteful number, since it uses less digits than its factorization.

25140858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 25140858 is about 5014.0660147230. The cubic root of 25140858 is about 292.9499073741.

The spelling of 25140858 in words is "twenty-five million, one hundred forty thousand, eight hundred fifty-eight".