1264360550 has 48 divisors (see below), whose sum is σ = 2499148080. Its totient is φ = 475902080.

The previous prime is 1264360547. The next prime is 1264360553. The reversal of 1264360550 is 550634621.

It is an interprime number because it is at equal distance from previous prime (1264360547) and next prime (1264360553).

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264360553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243077 + ... + 248223.

It is an arithmetic number, because the mean of its divisors is an integer number (52065585).

Almost surely, 2^1264360550 is an apocalyptic number.

1264360550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264360550 is a deficient number, since it is larger than the sum of its proper divisors (1234787530).

1264360550 is an equidigital number, since it uses as much as digits as its factorization.

1264360550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210 (or 5171 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1264360550 is about 35557.8479382541. The cubic root of 1264360550 is about 1081.3268300513.

The spelling of 1264360550 in words is "one billion, two hundred sixty-four million, three hundred sixty thousand, five hundred fifty".