2553278332825 has 18 divisors (see below), whose sum is σ = 3480055067342. Its totient is φ = 1856929694400.

The previous prime is 2553278332763. The next prime is 2553278332837. The reversal of 2553278332825 is 5282338723552.

It can be written as a sum of positive squares in 3 ways, for example, as 2476455696 + 2550801877129 = 49764^2 + 1597123^2 .

It is not a de Polignac number, because 2553278332825 - 2¹⁷ = 2553278201753 is a prime.

It is a super-2 number, since 2×2553278332825² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 422026452 + ... + 422032501.

Almost surely, 2^{2553278332825} is an apocalyptic number.

2553278332825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2553278332825 is a deficient number, since it is larger than the sum of its proper divisors (926776734517).

2553278332825 is a wasteful number, since it uses less digits than its factorization.

2553278332825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844058985 (or 844058969 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 55.

The spelling of 2553278332825 in words is "two trillion, five hundred fifty-three billion, two hundred seventy-eight million, three hundred thirty-two thousand, eight hundred twenty-five".