25149044 has 6 divisors (see below), whose sum is σ = 44010834. Its totient is φ = 12574520.

The previous prime is 25149043. The next prime is 25149127. The reversal of 25149044 is 44094152.

It can be written as a sum of positive squares in only one way, i.e., 25120144 + 28900 = 5012^2 + 170^2 .

It is a super-2 number, since 2×25149044² = 1264948828227872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25148998 and 25149016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25149041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3143627 + ... + 3143634.

It is an arithmetic number, because the mean of its divisors is an integer number (7335139).

Almost surely, 2^25149044 is an apocalyptic number.

It is an amenable number.

25149044 is a deficient number, since it is larger than the sum of its proper divisors (18861790).

25149044 is a wasteful number, since it uses less digits than its factorization.

25149044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6287265 (or 6287263 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 25149044 is about 5014.8822518580. The cubic root of 25149044 is about 292.9816992845.

The spelling of 25149044 in words is "twenty-five million, one hundred forty-nine thousand, forty-four".