1455212525 has 18 divisors (see below), whose sum is σ = 1953951390. Its totient is φ = 1074615360.

The previous prime is 1455212491. The next prime is 1455212537. The reversal of 1455212525 is 5252125541.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 1173610564 + 281601961 = 34258^2 + 16781^2 .

It is not a de Polignac number, because 1455212525 - 2¹⁸ = 1454950381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1455212491 and 1455212500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 167990 + ... + 176439.

It is an arithmetic number, because the mean of its divisors is an integer number (108552855).

Almost surely, 2^1455212525 is an apocalyptic number.

It is an amenable number.

1455212525 is a deficient number, since it is larger than the sum of its proper divisors (498738865).

1455212525 is a wasteful number, since it uses less digits than its factorization.

1455212525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344465 (or 344447 counting only the distinct ones).

The product of its digits is 20000, while the sum is 32.

The square root of 1455212525 is about 38147.2479348118. The cubic root of 1455212525 is about 1133.2058504723.

The spelling of 1455212525 in words is "one billion, four hundred fifty-five million, two hundred twelve thousand, five hundred twenty-five".