253534642 has 8 divisors (see below), whose sum is σ = 380818800. Its totient is φ = 126595044.

The previous prime is 253534627. The next prime is 253534657. The reversal of 253534642 is 246435352.

253534642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (253534627) and next prime (253534657).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 253534598 and 253534607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84292 + ... + 87247.

It is an arithmetic number, because the mean of its divisors is an integer number (47602350).

Almost surely, 2^253534642 is an apocalyptic number.

253534642 is a deficient number, since it is larger than the sum of its proper divisors (127284158).

253534642 is a wasteful number, since it uses less digits than its factorization.

253534642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172280.

The product of its digits is 86400, while the sum is 34.

The square root of 253534642 is about 15922.7711784099. The cubic root of 253534642 is about 632.9155550056.

Adding to 253534642 its reverse (246435352), we get a palindrome (499969994).

The spelling of 253534642 in words is "two hundred fifty-three million, five hundred thirty-four thousand, six hundred forty-two".