5025408121 has 4 divisors (see below), whose sum is σ = 5041464052. Its totient is φ = 5009352192.

The previous prime is 5025408061. The next prime is 5025408127. The reversal of 5025408121 is 1218045205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 940280896 + 4085127225 = 30664^2 + 63915^2 .

It is a cyclic number.

It is not a de Polignac number, because 5025408121 - 2²⁷ = 4891190393 is a prime.

It is a super-2 number, since 2×5025408121² = 50509453565225501282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5025408121.

It is not an unprimeable number, because it can be changed into a prime (5025408127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8027496 + ... + 8028121.

It is an arithmetic number, because the mean of its divisors is an integer number (1260366013).

Almost surely, 2^5025408121 is an apocalyptic number.

It is an amenable number.

5025408121 is a deficient number, since it is larger than the sum of its proper divisors (16055931).

5025408121 is a wasteful number, since it uses less digits than its factorization.

5025408121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16055930.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 5025408121 is about 70890.1129989225. The cubic root of 5025408121 is about 1712.8675392488.

The spelling of 5025408121 in words is "five billion, twenty-five million, four hundred eight thousand, one hundred twenty-one".