2547457972 has 6 divisors (see below), whose sum is σ = 4458051458. Its totient is φ = 1273728984.

The previous prime is 2547457967. The next prime is 2547457981. The reversal of 2547457972 is 2797547452.

It can be written as a sum of positive squares in only one way, i.e., 1978826256 + 568631716 = 44484^2 + 23846^2 .

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, 318432243 + ... + 318432250.

Almost surely, 2^2547457972 is an apocalyptic number.

It is an amenable number.

2547457972 is a deficient number, since it is larger than the sum of its proper divisors (1910593486).

2547457972 is a wasteful number, since it uses less digits than its factorization.

2547457972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636864497 (or 636864495 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 52.

The square root of 2547457972 is about 50472.3485881131. The cubic root of 2547457972 is about 1365.7430817447.

The spelling of 2547457972 in words is "two billion, five hundred forty-seven million, four hundred fifty-seven thousand, nine hundred seventy-two".