90845057254 has 32 divisors (see below), whose sum is σ = 164180814336. Its totient is φ = 36856892160.

The previous prime is 90845057183. The next prime is 90845057267. The reversal of 90845057254 is 45275054809.

It is a junction number, because it is equal to n+sod(n) for n = 90845057198 and 90845057207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1423032 + ... + 1485499.

It is an arithmetic number, because the mean of its divisors is an integer number (5130650448).

Almost surely, 2^90845057254 is an apocalyptic number.

90845057254 is a deficient number, since it is larger than the sum of its proper divisors (73335757082).

90845057254 is a wasteful number, since it uses less digits than its factorization.

90845057254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908660.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 90845057254 in words is "ninety billion, eight hundred forty-five million, fifty-seven thousand, two hundred fifty-four".