25029540 has 48 divisors (see below), whose sum is σ = 77871360. Its totient is φ = 6674400.

The previous prime is 25029533. The next prime is 25029551. The reversal of 25029540 is 4592052.

It is a super-2 number, since 2×25029540² = 1252955745223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22636 + ... + 23715.

It is an arithmetic number, because the mean of its divisors is an integer number (1622320).

Almost surely, 2^25029540 is an apocalyptic number.

25029540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25029540 is an abundant number, since it is smaller than the sum of its proper divisors (52841820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25029540 is a wasteful number, since it uses less digits than its factorization.

25029540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46369 (or 46361 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 25029540 is about 5002.9531279036. The cubic root of 25029540 is about 292.5168958025.

The spelling of 25029540 in words is "twenty-five million, twenty-nine thousand, five hundred forty".