654615254 has 4 divisors (see below), whose sum is σ = 981922884. Its totient is φ = 327307626.

The previous prime is 654615233. The next prime is 654615271. The reversal of 654615254 is 452516456.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×654615254² = 857042261538969032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 163653812 + ... + 163653815.

It is an arithmetic number, because the mean of its divisors is an integer number (245480721).

Almost surely, 2^654615254 is an apocalyptic number.

654615254 is a deficient number, since it is larger than the sum of its proper divisors (327307630).

654615254 is a wasteful number, since it uses less digits than its factorization.

654615254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327307629.

The product of its digits is 144000, while the sum is 38.

The square root of 654615254 is about 25585.4500448986. The cubic root of 654615254 is about 868.2844840056.

The spelling of 654615254 in words is "six hundred fifty-four million, six hundred fifteen thousand, two hundred fifty-four".