25090770 has 32 divisors (see below), whose sum is σ = 61689600. Its totient is φ = 6527360.

The previous prime is 25090739. The next prime is 25090777. The reversal of 25090770 is 7709052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (25090777) 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, 8970 + ... + 11429.

It is an arithmetic number, because the mean of its divisors is an integer number (1927800).

Almost surely, 2^25090770 is an apocalyptic number.

25090770 is an abundant number, since it is smaller than the sum of its proper divisors (36598830).

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

25090770 is a wasteful number, since it uses less digits than its factorization.

25090770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20450.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 25090770 is about 5009.0687757307. The cubic root of 25090770 is about 292.7552305091.

The spelling of 25090770 in words is "twenty-five million, ninety thousand, seven hundred seventy".