53258478 has 64 divisors (see below), whose sum is σ = 136829952. Its totient is φ = 13432320.

The previous prime is 53258477. The next prime is 53258479. The reversal of 53258478 is 87485235.

It is an interprime number because it is at equal distance from previous prime (53258477) and next prime (53258479).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53258477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10438 + ... + 14678.

It is an arithmetic number, because the mean of its divisors is an integer number (2137968).

Almost surely, 2^53258478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53258478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68414976).

53258478 is an abundant number, since it is smaller than the sum of its proper divisors (83571474).

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

53258478 is a wasteful number, since it uses less digits than its factorization.

53258478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289.

The product of its digits is 268800, while the sum is 42.

The square root of 53258478 is about 7297.8406395317. The cubic root of 53258478 is about 376.2382251846.

The spelling of 53258478 in words is "fifty-three million, two hundred fifty-eight thousand, four hundred seventy-eight".