1156222525 has 12 divisors (see below), whose sum is σ = 1439054100. Its totient is φ = 921534080.

The previous prime is 1156222519. The next prime is 1156222541. The reversal of 1156222525 is 5252226511.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 468419449 + 687803076 = 21643^2 + 26226^2 .

It is not a de Polignac number, because 1156222525 - 2¹⁵ = 1156189757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79240 + ... + 92689.

It is an arithmetic number, because the mean of its divisors is an integer number (119921175).

Almost surely, 2^1156222525 is an apocalyptic number.

It is an amenable number.

1156222525 is a deficient number, since it is larger than the sum of its proper divisors (282831575).

1156222525 is a wasteful number, since it uses less digits than its factorization.

1156222525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172208 (or 172203 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 1156222525 is about 34003.2722690038. The cubic root of 1156222525 is about 1049.5757999236.

The spelling of 1156222525 in words is "one billion, one hundred fifty-six million, two hundred twenty-two thousand, five hundred twenty-five".