53262990 has 144 divisors (see below), whose sum is σ = 156605904. Its totient is φ = 12545280.

The previous prime is 53262973. The next prime is 53263003. The reversal of 53262990 is 9926235.

It is a super-2 number, since 2×53262990² = 5673892207480200, 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 71 ways as a sum of consecutive naturals, for example, 729594 + ... + 729666.

It is an arithmetic number, because the mean of its divisors is an integer number (1087541).

Almost surely, 2^53262990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53262990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78302952).

53262990 is an abundant number, since it is smaller than the sum of its proper divisors (103342914).

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

53262990 is a wasteful number, since it uses less digits than its factorization.

53262990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 53262990 is about 7298.1497655228. The cubic root of 53262990 is about 376.2488497148.

The spelling of 53262990 in words is "fifty-three million, two hundred sixty-two thousand, nine hundred ninety".