253654 has 4 divisors (see below), whose sum is σ = 380484. Its totient is φ = 126826.

The previous prime is 253651. The next prime is 253661. The reversal of 253654 is 456352.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253651) 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 as a sum of consecutive naturals, namely, 63412 + ... + 63415.

It is an arithmetic number, because the mean of its divisors is an integer number (95121).

2²⁵³⁶⁵⁴ is an apocalyptic number.

253654 is a deficient number, since it is larger than the sum of its proper divisors (126830).

253654 is a wasteful number, since it uses less digits than its factorization.

253654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126829.

The product of its digits is 3600, while the sum is 25.

The square root of 253654 is about 503.6407449760. The cubic root of 253654 is about 63.3014859888.

The spelling of 253654 in words is "two hundred fifty-three thousand, six hundred fifty-four".