2025022500 has 90 divisors (see below), whose sum is σ = 6396532142. Its totient is φ = 540000000.

The previous prime is 2025022499. The next prime is 2025022501. The reversal of 2025022500 is 52205202.

It is an interprime number because it is at equal distance from previous prime (2025022499) and next prime (2025022501).

It can be written as a sum of positive squares in 5 ways, for example, as 162409536 + 1862612964 = 12744^2 + 43158^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×2025022500² = 8201432251012500000, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2025022501) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 22501 + ... + 67500.

Almost surely, 2^2025022500 is an apocalyptic number.

2025022500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2025022500 is an abundant number, since it is smaller than the sum of its proper divisors (4371509642).

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

2025022500 is a wasteful number, since it uses less digits than its factorization.

2025022500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90031 (or 90011 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2025022500 is about 45000.2499993056. The cubic root of 2025022500 is about 1265.1536836723.

Adding to 2025022500 its reverse (52205202), we get a palindrome (2077227702).

The spelling of 2025022500 in words is "two billion, twenty-five million, twenty-two thousand, five hundred".