53355690 has 96 divisors (see below), whose sum is σ = 150486336. Its totient is φ = 13063680.

The previous prime is 53355689. The next prime is 53355691. The reversal of 53355690 is 9655335.

It is an interprime number because it is at equal distance from previous prime (53355689) and next prime (53355691).

It is a super-2 number, since 2×53355690² = 5693659310752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53355691) 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, 65385 + ... + 66195.

It is an arithmetic number, because the mean of its divisors is an integer number (1567566).

Almost surely, 2^53355690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53355690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75243168).

53355690 is an abundant number, since it is smaller than the sum of its proper divisors (97130646).

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

53355690 is a wasteful number, since it uses less digits than its factorization.

53355690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 60750, while the sum is 36.

The square root of 53355690 is about 7304.4979293583. The cubic root of 53355690 is about 376.4670002770.

It can be divided in two parts, 53355 and 690, that added together give a palindrome (54045).

The spelling of 53355690 in words is "fifty-three million, three hundred fifty-five thousand, six hundred ninety".