25499010 has 16 divisors (see below), whose sum is σ = 61197696. Its totient is φ = 6799728.

The previous prime is 25499003. The next prime is 25499021. The reversal of 25499010 is 1099452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 849967 = 25499010 / (2 + 5 + 4 + 9 + 9 + 0 + 1 + 0).

It is a Curzon 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, 424954 + ... + 425013.

It is an arithmetic number, because the mean of its divisors is an integer number (3824856).

Almost surely, 2^25499010 is an apocalyptic number.

25499010 is an abundant number, since it is smaller than the sum of its proper divisors (35698686).

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

25499010 is a wasteful number, since it uses less digits than its factorization.

25499010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849977.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 25499010 is about 5049.6544436229. The cubic root of 25499010 is about 294.3344567114.

The spelling of 25499010 in words is "twenty-five million, four hundred ninety-nine thousand, ten".