90573750 has 120 divisors (see below), whose sum is σ = 250738488. Its totient is φ = 23616000.

The previous prime is 90573731. The next prime is 90573761. The reversal of 90573750 is 5737509.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 933702 + ... + 933798.

Almost surely, 2^90573750 is an apocalyptic number.

90573750 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 90573750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125369244).

90573750 is an abundant number, since it is smaller than the sum of its proper divisors (160164738).

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

90573750 is a wasteful number, since it uses less digits than its factorization.

90573750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 33075, while the sum is 36.

The square root of 90573750 is about 9517.0242197864. The cubic root of 90573750 is about 449.0907566667.

The spelling of 90573750 in words is "ninety million, five hundred seventy-three thousand, seven hundred fifty".