654615253 has 4 divisors (see below), whose sum is σ = 659612448. Its totient is φ = 649618060.

The previous prime is 654615233. The next prime is 654615271. The reversal of 654615253 is 352516456.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654615253 is a prime.

It is a super-2 number, since 2×654615253² = 857042258920508018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654615233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2498401 + ... + 2498662.

It is an arithmetic number, because the mean of its divisors is an integer number (164903112).

Almost surely, 2^654615253 is an apocalyptic number.

It is an amenable number.

654615253 is a deficient number, since it is larger than the sum of its proper divisors (4997195).

654615253 is a wasteful number, since it uses less digits than its factorization.

654615253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997194.

The product of its digits is 108000, while the sum is 37.

The square root of 654615253 is about 25585.4500253562. The cubic root of 654615253 is about 868.2844835634.

The spelling of 654615253 in words is "six hundred fifty-four million, six hundred fifteen thousand, two hundred fifty-three".