25012020 has 48 divisors (see below), whose sum is σ = 76402368. Its totient is φ = 6063360.

The previous prime is 25012019. The next prime is 25012021. The reversal of 25012020 is 2021052.

It is an interprime number because it is at equal distance from previous prime (25012019) and next prime (25012021).

It is a super-2 number, since 2×25012020² = 1251202288960800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 25011987 and 25012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25012021) 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, 18289 + ... + 19608.

It is an arithmetic number, because the mean of its divisors is an integer number (1591716).

Almost surely, 2^25012020 is an apocalyptic number.

25012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25012020 is an abundant number, since it is smaller than the sum of its proper divisors (51390348).

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

25012020 is a wasteful number, since it uses less digits than its factorization.

25012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37920 (or 37918 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 25012020 is about 5001.2018555543. The cubic root of 25012020 is about 292.4486285705.

Adding to 25012020 its reverse (2021052), we get a palindrome (27033072).

The spelling of 25012020 in words is "twenty-five million, twelve thousand, twenty".