249689826053 has 8 divisors (see below), whose sum is σ = 251229410880. Its totient is φ = 248150770560.

The previous prime is 249689826019. The next prime is 249689826073. The reversal of 249689826053 is 350628986942.

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

It is a cyclic number.

It is not a de Polignac number, because 249689826053 - 2⁶ = 249689825989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249689826073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835733 + ... + 1094453.

It is an arithmetic number, because the mean of its divisors is an integer number (31403676360).

Almost surely, 2^249689826053 is an apocalyptic number.

It is an amenable number.

249689826053 is a deficient number, since it is larger than the sum of its proper divisors (1539584827).

249689826053 is a wasteful number, since it uses less digits than its factorization.

249689826053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264667.

The product of its (nonzero) digits is 44789760, while the sum is 62.

The spelling of 249689826053 in words is "two hundred forty-nine billion, six hundred eighty-nine million, eight hundred twenty-six thousand, fifty-three".