20002501225 has 24 divisors (see below), whose sum is σ = 29260809728. Its totient is φ = 13273545600.

The previous prime is 20002501213. The next prime is 20002501229. The reversal of 20002501225 is 52210520002.

It is not a de Polignac number, because 20002501225 - 2⁷ = 20002501097 is a prime.

It is a super-2 number, since 2×20002501225² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20002501229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1838124 + ... + 1848973.

Almost surely, 2^20002501225 is an apocalyptic number.

20002501225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20002501225 is a deficient number, since it is larger than the sum of its proper divisors (9258308503).

20002501225 is a wasteful number, since it uses less digits than its factorization.

20002501225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687145 (or 3687140 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The spelling of 20002501225 in words is "twenty billion, two million, five hundred one thousand, two hundred twenty-five".