23813554 has 4 divisors (see below), whose sum is σ = 35720334. Its totient is φ = 11906776.

The previous prime is 23813551. The next prime is 23813561. The reversal of 23813554 is 45531832.

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

It can be written as a sum of positive squares in only one way, i.e., 20475625 + 3337929 = 4525^2 + 1827^2 .

It is a super-2 number, since 2×23813554² = 1134170708221832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23813551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5953387 + ... + 5953390.

Almost surely, 2^23813554 is an apocalyptic number.

23813554 is a deficient number, since it is larger than the sum of its proper divisors (11906780).

23813554 is a wasteful number, since it uses less digits than its factorization.

23813554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11906779.

The product of its digits is 14400, while the sum is 31.

The square root of 23813554 is about 4879.9133189023. The cubic root of 23813554 is about 287.7010223597.

The spelling of 23813554 in words is "twenty-three million, eight hundred thirteen thousand, five hundred fifty-four".