5213181501 has 24 divisors (see below), whose sum is σ = 8260630560. Its totient is φ = 3141842400.

The previous prime is 5213181499. The next prime is 5213181503. The reversal of 5213181501 is 1051813125.

5213181501 is a `hidden beast` number, since 52 + 1 + 31 + 81 + 501 = 666.

It is an interprime number because it is at equal distance from previous prime (5213181499) and next prime (5213181503).

It is not a de Polignac number, because 5213181501 - 2¹ = 5213181499 is a prime.

It is a super-2 number, since 2×5213181501² = 54354522724737226002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5213181503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129370 + ... + 164811.

It is an arithmetic number, because the mean of its divisors is an integer number (344192940).

Almost surely, 2^5213181501 is an apocalyptic number.

It is an amenable number.

5213181501 is a deficient number, since it is larger than the sum of its proper divisors (3047449059).

5213181501 is a wasteful number, since it uses less digits than its factorization.

5213181501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294377 (or 294374 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 5213181501 is about 72202.3649266421. The cubic root of 5213181501 is about 1733.9408641527.

Adding to 5213181501 its reverse (1051813125), we get a palindrome (6264994626).

The spelling of 5213181501 in words is "five billion, two hundred thirteen million, one hundred eighty-one thousand, five hundred one".