25140030 has 32 divisors (see below), whose sum is σ = 60480000. Its totient is φ = 6688032.

The previous prime is 25140007. The next prime is 25140043. The reversal of 25140030 is 3004152.

It is a super-2 number, since 2×25140030² = 1264042216801800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 25139991 and 25140009.

It is a congruent number.

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, 17271 + ... + 18669.

It is an arithmetic number, because the mean of its divisors is an integer number (1890000).

Almost surely, 2^25140030 is an apocalyptic number.

25140030 is an abundant number, since it is smaller than the sum of its proper divisors (35339970).

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

25140030 is a wasteful number, since it uses less digits than its factorization.

25140030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 25140030 is about 5013.9834463229. The cubic root of 25140030 is about 292.9466912920.

Adding to 25140030 its reverse (3004152), we get a palindrome (28144182).

The spelling of 25140030 in words is "twenty-five million, one hundred forty thousand, thirty".