254440442525 has 6 divisors (see below), whose sum is σ = 315506148762. Its totient is φ = 203552354000.

The previous prime is 254440442513. The next prime is 254440442533. The reversal of 254440442525 is 525244044452.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 139098436 + 254301344089 = 11794^2 + 504283^2 .

It is not a de Polignac number, because 254440442525 - 2⁶ = 254440442461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5088808826 + ... + 5088808875.

It is an arithmetic number, because the mean of its divisors is an integer number (52584358127).

Almost surely, 2^254440442525 is an apocalyptic number.

254440442525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

254440442525 is a deficient number, since it is larger than the sum of its proper divisors (61065706237).

254440442525 is a wasteful number, since it uses less digits than its factorization.

254440442525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10177617711 (or 10177617706 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 41.

Adding to 254440442525 its reverse (525244044452), we get a palindrome (779684486977).

The spelling of 254440442525 in words is "two hundred fifty-four billion, four hundred forty million, four hundred forty-two thousand, five hundred twenty-five".