25491058 has 32 divisors (see below), whose sum is σ = 42456960. Its totient is φ = 11424000.

The previous prime is 25491019. The next prime is 25491079. The reversal of 25491058 is 85019452.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101433 + ... + 101683.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^25491058 is an apocalyptic number.

25491058 is a deficient number, since it is larger than the sum of its proper divisors (16965902).

25491058 is a wasteful number, since it uses less digits than its factorization.

25491058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 25491058 is about 5048.8670016153. The cubic root of 25491058 is about 294.3038569490.

The spelling of 25491058 in words is "twenty-five million, four hundred ninety-one thousand, fifty-eight".