252626263898 has 4 divisors (see below), whose sum is σ = 378939395850. Its totient is φ = 126313131948.

The previous prime is 252626263867. The next prime is 252626263963. The reversal of 252626263898 is 898362626252.

It is a happy number.

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., 222654690769 + 29971573129 = 471863^2 + 173123^2 .

It is a super-2 number, since 2×252626263898² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63156565973 + ... + 63156565976.

Almost surely, 2^252626263898 is an apocalyptic number.

252626263898 is a deficient number, since it is larger than the sum of its proper divisors (126313131952).

252626263898 is a wasteful number, since it uses less digits than its factorization.

252626263898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126313131951.

The product of its digits is 29859840, while the sum is 59.

The spelling of 252626263898 in words is "two hundred fifty-two billion, six hundred twenty-six million, two hundred sixty-three thousand, eight hundred ninety-eight".