25155030 has 32 divisors (see below), whose sum is σ = 60528384. Its totient is φ = 6690656.

The previous prime is 25155029. The next prime is 25155037. The reversal of 25155030 is 3055152.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25154988 and 25155006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25155037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14257 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (1891512).

Almost surely, 2^25155030 is an apocalyptic number.

25155030 is an abundant number, since it is smaller than the sum of its proper divisors (35373354).

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

25155030 is a wasteful number, since it uses less digits than its factorization.

25155030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 25155030 is about 5015.4790399323. The cubic root of 25155030 is about 293.0049427038.

The spelling of 25155030 in words is "twenty-five million, one hundred fifty-five thousand, thirty".