90277823252 has 12 divisors (see below), whose sum is σ = 163433990580. Its totient is φ = 43582397376.

The previous prime is 90277823249. The next prime is 90277823261. The reversal of 90277823252 is 25232877209.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28970082436 + 61307740816 = 170206^2 + 247604^2 .

It is a super-2 number, since 2×90277823252² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90277823197 and 90277823206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389128433 + ... + 389128664.

It is an arithmetic number, because the mean of its divisors is an integer number (13619499215).

Almost surely, 2^90277823252 is an apocalyptic number.

It is an amenable number.

90277823252 is a deficient number, since it is larger than the sum of its proper divisors (73156167328).

90277823252 is a wasteful number, since it uses less digits than its factorization.

90277823252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778257130 (or 778257128 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 90277823252 in words is "ninety billion, two hundred seventy-seven million, eight hundred twenty-three thousand, two hundred fifty-two".