2539894652 has 6 divisors (see below), whose sum is σ = 4444815648. Its totient is φ = 1269947324.

The previous prime is 2539894633. The next prime is 2539894663. The reversal of 2539894652 is 2564989352.

It is a super-2 number, since 2×2539894652² = 12902129686516402208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2539894594 and 2539894603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317486828 + ... + 317486835.

It is an arithmetic number, because the mean of its divisors is an integer number (740802608).

Almost surely, 2^2539894652 is an apocalyptic number.

It is an amenable number.

2539894652 is a deficient number, since it is larger than the sum of its proper divisors (1904920996).

2539894652 is a wasteful number, since it uses less digits than its factorization.

2539894652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634973667 (or 634973665 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 53.

The square root of 2539894652 is about 50397.3675106151. The cubic root of 2539894652 is about 1364.3901262789.

The spelling of 2539894652 in words is "two billion, five hundred thirty-nine million, eight hundred ninety-four thousand, six hundred fifty-two".