37825913 has 2 divisors, whose sum is σ = 37825914. Its totient is φ = 37825912.

The previous prime is 37825883. The next prime is 37825927. The reversal of 37825913 is 31952873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37552384 + 273529 = 6128^2 + 523^2 .

It is an emirp because it is prime and its reverse (31952873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37825913 - 2¹⁰ = 37824889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (37825993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18912956 + 18912957.

It is an arithmetic number, because the mean of its divisors is an integer number (18912957).

Almost surely, 2^37825913 is an apocalyptic number.

It is an amenable number.

37825913 is a deficient number, since it is larger than the sum of its proper divisors (1).

37825913 is an equidigital number, since it uses as much as digits as its factorization.

37825913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 37825913 is about 6150.2774734153. The cubic root of 37825913 is about 335.6833544892.

The spelling of 37825913 in words is "thirty-seven million, eight hundred twenty-five thousand, nine hundred thirteen".