90602051 has 4 divisors (see below), whose sum is σ = 95370600. Its totient is φ = 85833504.

The previous prime is 90602021. The next prime is 90602059. The reversal of 90602051 is 15020609.

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

It is a cyclic number.

It is not a de Polignac number, because 90602051 - 2¹⁴ = 90585667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90602059) 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, 2384246 + ... + 2384283.

It is an arithmetic number, because the mean of its divisors is an integer number (23842650).

Almost surely, 2^90602051 is an apocalyptic number.

90602051 is a deficient number, since it is larger than the sum of its proper divisors (4768549).

90602051 is a wasteful number, since it uses less digits than its factorization.

90602051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4768548.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 90602051 is about 9518.5109654819. The cubic root of 90602051 is about 449.1375266340.

It can be divided in two parts, 9060 and 2051, that added together give a palindrome (11111).

The spelling of 90602051 in words is "ninety million, six hundred two thousand, fifty-one".