1377523225 has 27 divisors (see below), whose sum is σ = 1852875549. Its totient is φ = 1015466400.

The previous prime is 1377523211. The next prime is 1377523241. The reversal of 1377523225 is 5223257731.

The square root of 1377523225 is 37115.

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 355058649 + 1022464576 = 18843^2 + 31976^2 .

It is not a de Polignac number, because 1377523225 - 2⁵ = 1377523193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2412190 + ... + 2412760.

Almost surely, 2^1377523225 is an apocalyptic number.

1377523225 is the 37115-th square number.

1377523225 is the 18558-th centered octagonal number.

It is an amenable number.

1377523225 is a deficient number, since it is larger than the sum of its proper divisors (475352324).

1377523225 is an frugal number, since it uses more digits than its factorization.

1377523225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 589 counting only the distinct ones).

The product of its digits is 88200, while the sum is 37.

The cubic root of 1377523225 is about 1112.6698238414.

The spelling of 1377523225 in words is "one billion, three hundred seventy-seven million, five hundred twenty-three thousand, two hundred twenty-five".