37698556207225 has 9 divisors (see below), whose sum is σ = 46746247764463. Its totient is φ = 30158820406120.

The previous prime is 37698556207217. The next prime is 37698556207267. The reversal of 37698556207225 is 52270265589673.

The square root of 37698556207225 is 6139915.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13571480234601 + 24127075972624 = 3683949^2 + 4911932^2 .

It is not a de Polignac number, because 37698556207225 - 2³ = 37698556207217 is a prime.

It is a super-2 number, since 2×37698556207225² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30085584 + ... + 31313566.

Almost surely, 2^{37698556207225} is an apocalyptic number.

37698556207225 is the 6139915-th square number.

37698556207225 is the 3069958-th centered octagonal number.

It is an amenable number.

37698556207225 is a deficient number, since it is larger than the sum of its proper divisors (9047691557238).

37698556207225 is an frugal number, since it uses more digits than its factorization.

37698556207225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455976 (or 1227988 counting only the distinct ones).

The product of its (nonzero) digits is 381024000, while the sum is 67.

The spelling of 37698556207225 in words is "thirty-seven trillion, six hundred ninety-eight billion, five hundred fifty-six million, two hundred seven thousand, two hundred twenty-five".