53398620 has 144 divisors (see below), whose sum is σ = 178869600. Its totient is φ = 12787200.

The previous prime is 53398619. The next prime is 53398621. The reversal of 53398620 is 2689335.

It is an interprime number because it is at equal distance from previous prime (53398619) and next prime (53398621).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53398621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 294930 + ... + 295110.

It is an arithmetic number, because the mean of its divisors is an integer number (1242150).

Almost surely, 2^53398620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53398620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89434800).

53398620 is an abundant number, since it is smaller than the sum of its proper divisors (125470980).

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

53398620 is a wasteful number, since it uses less digits than its factorization.

53398620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 53398620 is about 7307.4359388229. The cubic root of 53398620 is about 376.5679416866.

The spelling of 53398620 in words is "fifty-three million, three hundred ninety-eight thousand, six hundred twenty".