90250054 has 4 divisors (see below), whose sum is σ = 135375084. Its totient is φ = 45125026.

The previous prime is 90250051. The next prime is 90250063. The reversal of 90250054 is 45005209.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90250051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22562512 + ... + 22562515.

It is an arithmetic number, because the mean of its divisors is an integer number (33843771).

Almost surely, 2^90250054 is an apocalyptic number.

90250054 is a deficient number, since it is larger than the sum of its proper divisors (45125030).

90250054 is a wasteful number, since it uses less digits than its factorization.

90250054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45125029.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 90250054 is about 9500.0028421048. The cubic root of 90250054 is about 448.5551253857. Note that the first 3 decimals are identical.

The spelling of 90250054 in words is "ninety million, two hundred fifty thousand, fifty-four".