361616725 has 24 divisors (see below), whose sum is σ = 462365000. Its totient is φ = 280350720.

The previous prime is 361616659. The next prime is 361616743. The reversal of 361616725 is 527616163.

361616725 = 13446² + 13447².

It can be written as a sum of positive squares in 12 ways, for example, as 152004241 + 209612484 = 12329^2 + 14478^2 .

It is not a de Polignac number, because 361616725 - 2¹⁷ = 361485653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288901 + ... + 290149.

Almost surely, 2^361616725 is an apocalyptic number.

361616725 is the 13447-th centered square number.

It is an amenable number.

361616725 is a deficient number, since it is larger than the sum of its proper divisors (100748275).

361616725 is a wasteful number, since it uses less digits than its factorization.

361616725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609 (or 1604 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 361616725 is about 19016.2226795965. Note that the first 3 decimals coincide. The cubic root of 361616725 is about 712.4419815279.

The spelling of 361616725 in words is "three hundred sixty-one million, six hundred sixteen thousand, seven hundred twenty-five".