612632253 has 4 divisors (see below), whose sum is σ = 816843008. Its totient is φ = 408421500.

The previous prime is 612632249. The next prime is 612632287. The reversal of 612632253 is 352236216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 612632253 - 2² = 612632249 is a prime.

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 612632253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612630253) 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, 102105373 + ... + 102105378.

It is an arithmetic number, because the mean of its divisors is an integer number (204210752).

Almost surely, 2^612632253 is an apocalyptic number.

It is an amenable number.

612632253 is a deficient number, since it is larger than the sum of its proper divisors (204210755).

612632253 is a wasteful number, since it uses less digits than its factorization.

612632253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204210754.

The product of its digits is 12960, while the sum is 30.

The square root of 612632253 is about 24751.4091114021. The cubic root of 612632253 is about 849.3107459728.

Adding to 612632253 its reverse (352236216), we get a palindrome (964868469).

The spelling of 612632253 in words is "six hundred twelve million, six hundred thirty-two thousand, two hundred fifty-three".