53385402 has 72 divisors (see below), whose sum is σ = 131344416. Its totient is φ = 14421456.

The previous prime is 53385401. The next prime is 53385419. The reversal of 53385402 is 20458335.

It is a super-2 number, since 2×53385402² = 5700002293403208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 53385402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53385401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 105883 + ... + 106385.

It is an arithmetic number, because the mean of its divisors is an integer number (1824228).

Almost surely, 2^53385402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53385402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65672208).

53385402 is an abundant number, since it is smaller than the sum of its proper divisors (77959014).

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

53385402 is a wasteful number, since it uses less digits than its factorization.

53385402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 53385402 is about 7306.5314616444. The cubic root of 53385402 is about 376.5368679384.

The spelling of 53385402 in words is "fifty-three million, three hundred eighty-five thousand, four hundred two".