20211415425 has 18 divisors (see below), whose sum is σ = 36200891142. Its totient is φ = 10779421440.

The previous prime is 20211415423. The next prime is 20211415451. The reversal of 20211415425 is 52451411202.

It is a happy number.

20211415425 is a `hidden beast` number, since 2 + 0 + 2 + 114 + 1 + 542 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 299947761 + 19911467664 = 17319^2 + 141108^2 .

It is not a de Polignac number, because 20211415425 - 2¹ = 20211415423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211415421) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 44914032 + ... + 44914481.

It is an arithmetic number, because the mean of its divisors is an integer number (2011160619).

Almost surely, 2^20211415425 is an apocalyptic number.

20211415425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20211415425 is a deficient number, since it is larger than the sum of its proper divisors (15989475717).

20211415425 is a wasteful number, since it uses less digits than its factorization.

20211415425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89828529 (or 89828521 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 20211415425 its reverse (52451411202), we get a palindrome (72662826627).

The spelling of 20211415425 in words is "twenty billion, two hundred eleven million, four hundred fifteen thousand, four hundred twenty-five".