37472509 has 2 divisors, whose sum is σ = 37472510. Its totient is φ = 37472508.

The previous prime is 37472467. The next prime is 37472531. The reversal of 37472509 is 90527473.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18896409 + 18576100 = 4347^2 + 4310^2 .

It is a cyclic number.

It is not a de Polignac number, because 37472509 - 2⁷ = 37472381 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37472569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18736254 + 18736255.

It is an arithmetic number, because the mean of its divisors is an integer number (18736255).

Almost surely, 2^37472509 is an apocalyptic number.

It is an amenable number.

37472509 is a deficient number, since it is larger than the sum of its proper divisors (1).

37472509 is an equidigital number, since it uses as much as digits as its factorization.

37472509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 37472509 is about 6121.4793146755. The cubic root of 37472509 is about 334.6346622402.

The spelling of 37472509 in words is "thirty-seven million, four hundred seventy-two thousand, five hundred nine".