25153020 has 36 divisors (see below), whose sum is σ = 76298040. Its totient is φ = 6707424.

The previous prime is 25153001. The next prime is 25153061. The reversal of 25153020 is 2035152.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 25152984 and 25153002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69690 + ... + 70049.

It is an arithmetic number, because the mean of its divisors is an integer number (2119390).

Almost surely, 2^25153020 is an apocalyptic number.

25153020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25153020 is an abundant number, since it is smaller than the sum of its proper divisors (51145020).

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

25153020 is a wasteful number, since it uses less digits than its factorization.

25153020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139754 (or 139749 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 25153020 is about 5015.2786562663. The cubic root of 25153020 is about 292.9971383584.

Adding to 25153020 its reverse (2035152), we get a palindrome (27188172).

The spelling of 25153020 in words is "twenty-five million, one hundred fifty-three thousand, twenty".