25390154 has 4 divisors (see below), whose sum is σ = 38085234. Its totient is φ = 12695076.

The previous prime is 25390153. The next prime is 25390171. The reversal of 25390154 is 45109352.

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

It can be written as a sum of positive squares in only one way, i.e., 21836929 + 3553225 = 4673^2 + 1885^2 .

It is not an unprimeable number, because it can be changed into a prime (25390153) 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 as a sum of consecutive naturals, namely, 6347537 + ... + 6347540.

Almost surely, 2^25390154 is an apocalyptic number.

25390154 is a deficient number, since it is larger than the sum of its proper divisors (12695080).

25390154 is a wasteful number, since it uses less digits than its factorization.

25390154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12695079.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 25390154 is about 5038.8643561819. The cubic root of 25390154 is about 293.9150185530.

The spelling of 25390154 in words is "twenty-five million, three hundred ninety thousand, one hundred fifty-four".