90725201 has 4 divisors (see below), whose sum is σ = 103685952. Its totient is φ = 77764452.

The previous prime is 90725183. The next prime is 90725207. The reversal of 90725201 is 10252709.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90725201 - 2¹⁴ = 90708817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90725207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6480365 + ... + 6480378.

It is an arithmetic number, because the mean of its divisors is an integer number (25921488).

Almost surely, 2^90725201 is an apocalyptic number.

It is an amenable number.

90725201 is a deficient number, since it is larger than the sum of its proper divisors (12960751).

90725201 is a wasteful number, since it uses less digits than its factorization.

90725201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12960750.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 90725201 is about 9524.9777427561. The cubic root of 90725201 is about 449.3409298471.

The spelling of 90725201 in words is "ninety million, seven hundred twenty-five thousand, two hundred one".