90509152 has 24 divisors (see below), whose sum is σ = 182336616. Its totient is φ = 44201472.

The previous prime is 90509149. The next prime is 90509183. The reversal of 90509152 is 25190509.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31513 + ... + 34264.

It is an arithmetic number, because the mean of its divisors is an integer number (7597359).

Almost surely, 2^90509152 is an apocalyptic number.

It is an amenable number.

90509152 is an abundant number, since it is smaller than the sum of its proper divisors (91827464).

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

90509152 is a wasteful number, since it uses less digits than its factorization.

90509152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65830 (or 65822 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 90509152 is about 9513.6298015006. The cubic root of 90509152 is about 448.9839661075.

The spelling of 90509152 in words is "ninety million, five hundred nine thousand, one hundred fifty-two".