21150059254 has 8 divisors (see below), whose sum is σ = 31967265528. Its totient is φ = 10494304080.

The previous prime is 21150059237. The next prime is 21150059297. The reversal of 21150059254 is 45295005112.

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

It is a super-2 number, since 2×21150059254² (a number of 21 digits) contains 22 as substring.

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, 40362447 + ... + 40362970.

It is an arithmetic number, because the mean of its divisors is an integer number (3995908191).

Almost surely, 2^21150059254 is an apocalyptic number.

21150059254 is a deficient number, since it is larger than the sum of its proper divisors (10817206274).

21150059254 is a wasteful number, since it uses less digits than its factorization.

21150059254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80725550.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 21150059254 in words is "twenty-one billion, one hundred fifty million, fifty-nine thousand, two hundred fifty-four".