23019554 has 4 divisors (see below), whose sum is σ = 34529334. Its totient is φ = 11509776.

The previous prime is 23019539. The next prime is 23019571. The reversal of 23019554 is 45591032.

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., 18705625 + 4313929 = 4325^2 + 2077^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5754887 + ... + 5754890.

Almost surely, 2^23019554 is an apocalyptic number.

23019554 is a deficient number, since it is larger than the sum of its proper divisors (11509780).

23019554 is a wasteful number, since it uses less digits than its factorization.

23019554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11509779.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 23019554 is about 4797.8697356223. The cubic root of 23019554 is about 284.4672678739.

The spelling of 23019554 in words is "twenty-three million, nineteen thousand, five hundred fifty-four".