214858381525 has 12 divisors (see below), whose sum is σ = 282096416772. Its totient is φ = 161775722240.

The previous prime is 214858381501. The next prime is 214858381537. The reversal of 214858381525 is 525183858412.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1097331876 + 213761049649 = 33126^2 + 462343^2 .

It is a de Polignac number, because none of the positive numbers 2^k-214858381525 is a prime.

It is a super-2 number, since 2×214858381525² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252774142 + ... + 252774991.

It is an arithmetic number, because the mean of its divisors is an integer number (23508034731).

Almost surely, 2^214858381525 is an apocalyptic number.

214858381525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

214858381525 is a deficient number, since it is larger than the sum of its proper divisors (67238035247).

214858381525 is a wasteful number, since it uses less digits than its factorization.

214858381525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505549160 (or 505549155 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 52.

The spelling of 214858381525 in words is "two hundred fourteen billion, eight hundred fifty-eight million, three hundred eighty-one thousand, five hundred twenty-five".