3745345725 has 36 divisors (see below), whose sum is σ = 7318183392. Its totient is φ = 1815924000.

The previous prime is 3745345663. The next prime is 3745345733. The reversal of 3745345725 is 5275435473.

3745345725 is a `hidden beast` number, since 3 + 7 + 45 + 34 + 572 + 5 = 666.

It is not a de Polignac number, because 3745345725 - 2¹¹ = 3745343677 is a prime.

It is a super-2 number, since 2×3745345725² = 28055229199551551250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 754161 + ... + 759110.

It is an arithmetic number, because the mean of its divisors is an integer number (203282872).

Almost surely, 2^3745345725 is an apocalyptic number.

It is an amenable number.

3745345725 is a deficient number, since it is larger than the sum of its proper divisors (3572837667).

3745345725 is a wasteful number, since it uses less digits than its factorization.

3745345725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513298 (or 1513290 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 45.

The square root of 3745345725 is about 61199.2297745650. The cubic root of 3745345725 is about 1552.9732351197.

The spelling of 3745345725 in words is "three billion, seven hundred forty-five million, three hundred forty-five thousand, seven hundred twenty-five".