90052469 has 4 divisors (see below), whose sum is σ = 96979596. Its totient is φ = 83125344.

The previous prime is 90052463. The next prime is 90052477. The reversal of 90052469 is 96425009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96425009 = 1213 ⋅79493.

It can be written as a sum of positive squares in 2 ways, for example, as 18447025 + 71605444 = 4295^2 + 8462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90052469 is a prime.

It is a super-2 number, since 2×90052469² = 16218894345991922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90052463) 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, 3463544 + ... + 3463569.

It is an arithmetic number, because the mean of its divisors is an integer number (24244899).

Almost surely, 2^90052469 is an apocalyptic number.

It is an amenable number.

90052469 is a deficient number, since it is larger than the sum of its proper divisors (6927127).

90052469 is a wasteful number, since it uses less digits than its factorization.

90052469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6927126.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 90052469 is about 9489.5979366884. The cubic root of 90052469 is about 448.2275447101.

The spelling of 90052469 in words is "ninety million, fifty-two thousand, four hundred sixty-nine".