25702090 has 16 divisors (see below), whose sum is σ = 46742472. Its totient is φ = 10174464.

The previous prime is 25702081. The next prime is 25702099. The reversal of 25702090 is 9020752.

It is an interprime number because it is at equal distance from previous prime (25702081) and next prime (25702099).

It can be written as a sum of positive squares in 4 ways, for example, as 24196561 + 1505529 = 4919^2 + 1227^2 .

It is not an unprimeable number, because it can be changed into a prime (25702099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12279 + ... + 14218.

Almost surely, 2^25702090 is an apocalyptic number.

25702090 is a deficient number, since it is larger than the sum of its proper divisors (21040382).

25702090 is a wasteful number, since it uses less digits than its factorization.

25702090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26601.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 25702090 is about 5069.7228721105. The cubic root of 25702090 is about 295.1137739831.

The spelling of 25702090 in words is "twenty-five million, seven hundred two thousand, ninety".