2537915389 has 4 divisors (see below), whose sum is σ = 2538095580. Its totient is φ = 2537735200.

The previous prime is 2537915383. The next prime is 2537915407. The reversal of 2537915389 is 9835197352.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2029052025 + 508863364 = 45045^2 + 22558^2 .

It is a cyclic number.

It is not a de Polignac number, because 2537915389 - 2¹¹ = 2537913341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2537915383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66994 + ... + 97795.

It is an arithmetic number, because the mean of its divisors is an integer number (634523895).

Almost surely, 2^2537915389 is an apocalyptic number.

It is an amenable number.

2537915389 is a deficient number, since it is larger than the sum of its proper divisors (180191).

2537915389 is a wasteful number, since it uses less digits than its factorization.

2537915389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180190.

The product of its digits is 2041200, while the sum is 52.

The square root of 2537915389 is about 50377.7271122864. The cubic root of 2537915389 is about 1364.0356248740.

The spelling of 2537915389 in words is "two billion, five hundred thirty-seven million, nine hundred fifteen thousand, three hundred eighty-nine".