253046478 has 16 divisors (see below), whose sum is σ = 519771600. Its totient is φ = 82069056.

The previous prime is 253046461. The next prime is 253046501. The reversal of 253046478 is 874640352.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569703 + ... + 570146.

It is an arithmetic number, because the mean of its divisors is an integer number (32485725).

Almost surely, 2^253046478 is an apocalyptic number.

253046478 is an abundant number, since it is smaller than the sum of its proper divisors (266725122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253046478 is a wasteful number, since it uses less digits than its factorization.

253046478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139891.

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 253046478 is about 15907.4346769050. The cubic root of 253046478 is about 632.5090818216.

The spelling of 253046478 in words is "two hundred fifty-three million, forty-six thousand, four hundred seventy-eight".