90552011 has 4 divisors (see below), whose sum is σ = 98784024. Its totient is φ = 82320000.

The previous prime is 90551977. The next prime is 90552019. The reversal of 90552011 is 11025509.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90552011 is a prime.

It is a super-2 number, since 2×90552011² = 16399333392288242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90552019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4115990 + ... + 4116011.

It is an arithmetic number, because the mean of its divisors is an integer number (24696006).

Almost surely, 2^90552011 is an apocalyptic number.

90552011 is a deficient number, since it is larger than the sum of its proper divisors (8232013).

90552011 is a wasteful number, since it uses less digits than its factorization.

90552011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8232012.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 90552011 is about 9515.8820400423. The cubic root of 90552011 is about 449.0548243827.

The spelling of 90552011 in words is "ninety million, five hundred fifty-two thousand, eleven".