1365672025 has 27 divisors (see below), whose sum is σ = 1791858621. Its totient is φ = 1032374880.

The previous prime is 1365672023. The next prime is 1365672037. The reversal of 1365672025 is 5202765631.

The square root of 1365672025 is 36955.

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

It can be written as a sum of positive squares in 4 ways, for example, as 227014489 + 1138657536 = 15067^2 + 33744^2 .

It is not a de Polignac number, because 1365672025 - 2¹ = 1365672023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1365672023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3510531 + ... + 3510919.

Almost surely, 2^1365672025 is an apocalyptic number.

1365672025 is the 36955-th square number.

1365672025 is the 18478-th centered octagonal number.

It is an amenable number.

1365672025 is a deficient number, since it is larger than the sum of its proper divisors (426186596).

1365672025 is an frugal number, since it uses more digits than its factorization.

1365672025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The cubic root of 1365672025 is about 1109.4697640665.

The spelling of 1365672025 in words is "one billion, three hundred sixty-five million, six hundred seventy-two thousand, twenty-five".