1252766567 has 8 divisors (see below), whose sum is σ = 1428494256. Its totient is φ = 1088376192.

The previous prime is 1252766531. The next prime is 1252766569. The reversal of 1252766567 is 7656672521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1252766567 - 2⁶ = 1252766503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252766569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2834093 + ... + 2834534.

It is an arithmetic number, because the mean of its divisors is an integer number (178561782).

Almost surely, 2^1252766567 is an apocalyptic number.

1252766567 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1252766567 is a deficient number, since it is larger than the sum of its proper divisors (175727689).

1252766567 is a wasteful number, since it uses less digits than its factorization.

1252766567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668657.

The product of its digits is 1058400, while the sum is 47.

The square root of 1252766567 is about 35394.4426004987. The cubic root of 1252766567 is about 1078.0114778203.

The spelling of 1252766567 in words is "one billion, two hundred fifty-two million, seven hundred sixty-six thousand, five hundred sixty-seven".