253587078 has 64 divisors (see below), whose sum is σ = 590284800. Its totient is φ = 80589600.

The previous prime is 253587067. The next prime is 253587101. The reversal of 253587078 is 870785352.

It is a super-2 number, since 2×253587078² = 128612812257156168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129003 + ... + 130953.

It is an arithmetic number, because the mean of its divisors is an integer number (9223200).

Almost surely, 2^253587078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253587078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295142400).

253587078 is an abundant number, since it is smaller than the sum of its proper divisors (336697722).

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

253587078 is a wasteful number, since it uses less digits than its factorization.

253587078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 253587078 is about 15924.4176659619. The cubic root of 253587078 is about 632.9591851674.

The spelling of 253587078 in words is "two hundred fifty-three million, five hundred eighty-seven thousand, seventy-eight".