501540149755 has 4 divisors (see below), whose sum is σ = 601848179712. Its totient is φ = 401232119800.

The previous prime is 501540149731. The next prime is 501540149783. The reversal of 501540149755 is 557941045105.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 501540149755 - 2¹¹ = 501540147707 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50154014971 + ... + 50154014980.

It is an arithmetic number, because the mean of its divisors is an integer number (150462044928).

Almost surely, 2^501540149755 is an apocalyptic number.

501540149755 is a deficient number, since it is larger than the sum of its proper divisors (100308029957).

501540149755 is a wasteful number, since it uses less digits than its factorization.

501540149755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100308029956.

The product of its (nonzero) digits is 630000, while the sum is 46.

The spelling of 501540149755 in words is "five hundred one billion, five hundred forty million, one hundred forty-nine thousand, seven hundred fifty-five".