251455000553 has 8 divisors (see below), whose sum is σ = 262393762176. Its totient is φ = 240516733600.

The previous prime is 251455000529. The next prime is 251455000567. The reversal of 251455000553 is 355000554152.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-251455000553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251455000253) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1230908 + ... + 1420578.

It is an arithmetic number, because the mean of its divisors is an integer number (32799220272).

Almost surely, 2^251455000553 is an apocalyptic number.

251455000553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

251455000553 is a deficient number, since it is larger than the sum of its proper divisors (10938761623).

251455000553 is a wasteful number, since it uses less digits than its factorization.

251455000553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247335.

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 251455000553 in words is "two hundred fifty-one billion, four hundred fifty-five million, five hundred fifty-three", and thus it is an aban number.