90250006 has 32 divisors (see below), whose sum is σ = 170387712. Its totient is φ = 34827360.

The previous prime is 90249997. The next prime is 90250007. The reversal of 90250006 is 60005209.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90250007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13740 + ... + 19216.

It is an arithmetic number, because the mean of its divisors is an integer number (5324616).

Almost surely, 2^90250006 is an apocalyptic number.

90250006 is a deficient number, since it is larger than the sum of its proper divisors (80137706).

90250006 is a wasteful number, since it uses less digits than its factorization.

90250006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5604.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 90250006 is about 9500.0003157895. Note that the first 3 decimals coincide. The cubic root of 90250006 is about 448.5550458635. Note that the first 3 decimals are identical.

The spelling of 90250006 in words is "ninety million, two hundred fifty thousand, six".