253123028 has 6 divisors (see below), whose sum is σ = 442965306. Its totient is φ = 126561512.

The previous prime is 253123021. The next prime is 253123033. The reversal of 253123028 is 820321352.

It can be written as a sum of positive squares in only one way, i.e., 253064464 + 58564 = 15908^2 + 242^2 .

It is a junction number, because it is equal to n+sod(n) for n = 253122988 and 253123006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253123021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31640375 + ... + 31640382.

It is an arithmetic number, because the mean of its divisors is an integer number (73827551).

Almost surely, 2^253123028 is an apocalyptic number.

It is an amenable number.

253123028 is a deficient number, since it is larger than the sum of its proper divisors (189842278).

253123028 is a wasteful number, since it uses less digits than its factorization.

253123028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63280761 (or 63280759 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 253123028 is about 15909.8406025956. The cubic root of 253123028 is about 632.5728562568.

The spelling of 253123028 in words is "two hundred fifty-three million, one hundred twenty-three thousand, twenty-eight".