21054598 has 8 divisors (see below), whose sum is σ = 31741200. Its totient is φ = 10474200.

The previous prime is 21054569. The next prime is 21054601. The reversal of 21054598 is 89545012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26053 + ... + 26848.

It is an arithmetic number, because the mean of its divisors is an integer number (3967650).

Almost surely, 2^21054598 is an apocalyptic number.

21054598 is a deficient number, since it is larger than the sum of its proper divisors (10686602).

21054598 is a wasteful number, since it uses less digits than its factorization.

21054598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53102.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 21054598 is about 4588.5289581739. The cubic root of 21054598 is about 276.1313087297.

The spelling of 21054598 in words is "twenty-one million, fifty-four thousand, five hundred ninety-eight".