509901054 has 24 divisors (see below), whose sum is σ = 1104284952. Its totient is φ = 156892320.

The previous prime is 509901031. The next prime is 509901059. The reversal of 509901054 is 450109905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509901059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250417 + ... + 252444.

It is an arithmetic number, because the mean of its divisors is an integer number (46011873).

Almost surely, 2^509901054 is an apocalyptic number.

509901054 is an abundant number, since it is smaller than the sum of its proper divisors (594383898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

509901054 is a wasteful number, since it uses less digits than its factorization.

509901054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502892 (or 502879 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 509901054 is about 22580.9887737451. The cubic root of 509901054 is about 798.9053016861.

The spelling of 509901054 in words is "five hundred nine million, nine hundred one thousand, fifty-four".