25091054 has 4 divisors (see below), whose sum is σ = 37636584. Its totient is φ = 12545526.

The previous prime is 25091047. The next prime is 25091081. The reversal of 25091054 is 45019052.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6272762 + ... + 6272765.

It is an arithmetic number, because the mean of its divisors is an integer number (9409146).

Almost surely, 2^25091054 is an apocalyptic number.

25091054 is a deficient number, since it is larger than the sum of its proper divisors (12545530).

25091054 is a wasteful number, since it uses less digits than its factorization.

25091054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12545529.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 25091054 is about 5009.0971242331. The cubic root of 25091054 is about 292.7563350610.

The spelling of 25091054 in words is "twenty-five million, ninety-one thousand, fifty-four".