501151056 has 40 divisors (see below), whose sum is σ = 1479589824. Its totient is φ = 143185920.

The previous prime is 501151043. The next prime is 501151061. The reversal of 501151056 is 650151105.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745425 + ... + 746096.

Almost surely, 2^501151056 is an apocalyptic number.

501151056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

501151056 is an abundant number, since it is smaller than the sum of its proper divisors (978438768).

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

501151056 is a wasteful number, since it uses less digits than its factorization.

501151056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491539 (or 1491533 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 501151056 is about 22386.4033734765. The cubic root of 501151056 is about 794.3091217060.

The spelling of 501151056 in words is "five hundred one million, one hundred fifty-one thousand, fifty-six".