2501711381 has 8 divisors (see below), whose sum is σ = 2852630424. Its totient is φ = 2173432320.

The previous prime is 2501711369. The next prime is 2501711389. The reversal of 2501711381 is 1831171052.

It can be written as a sum of positive squares in 4 ways, for example, as 160022500 + 2341688881 = 12650^2 + 48391^2 .

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

It is not a de Polignac number, because 2501711381 - 2¹⁴ = 2501694997 is a prime.

It is a super-2 number, since 2×2501711381² = 12517119667649854322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501711389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5659760 + ... + 5660201.

It is an arithmetic number, because the mean of its divisors is an integer number (356578803).

Almost surely, 2^2501711381 is an apocalyptic number.

It is an amenable number.

2501711381 is a deficient number, since it is larger than the sum of its proper divisors (350919043).

2501711381 is a wasteful number, since it uses less digits than its factorization.

2501711381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11319991.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 2501711381 is about 50017.1108821771. The cubic root of 2501711381 is about 1357.5184311728.

The spelling of 2501711381 in words is "two billion, five hundred one million, seven hundred eleven thousand, three hundred eighty-one".