20041405025 has 12 divisors (see below), whose sum is σ = 24853242624. Its totient is φ = 16031898000.

The previous prime is 20041404979. The next prime is 20041405039. The reversal of 20041405025 is 52050414002.

It is a happy number.

It is not a de Polignac number, because 20041405025 - 2⁶ = 20041404961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451580 + ... + 493970.

It is an arithmetic number, because the mean of its divisors is an integer number (2071103552).

Almost surely, 2^20041405025 is an apocalyptic number.

20041405025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20041405025 is a deficient number, since it is larger than the sum of its proper divisors (4811837599).

20041405025 is a wasteful number, since it uses less digits than its factorization.

20041405025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61312 (or 61307 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 20041405025 its reverse (52050414002), we get a palindrome (72091819027).

The spelling of 20041405025 in words is "twenty billion, forty-one million, four hundred five thousand, twenty-five".