1275507552 has 192 divisors, whose sum is σ = 3896895744. Its totient is φ = 361021440.

The previous prime is 1275507523. The next prime is 1275507553. The reversal of 1275507552 is 2557055721.

It is a self number, because there is not a number n which added to its sum of digits gives 1275507552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275507553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4074948 + ... + 4075260.

It is an arithmetic number, because the mean of its divisors is an integer number (20296332).

Almost surely, 2^1275507552 is an apocalyptic number.

1275507552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1275507552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1948447872).

1275507552 is an abundant number, since it is smaller than the sum of its proper divisors (2621388192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1275507552 is a wasteful number, since it uses less digits than its factorization.

1275507552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 122500, while the sum is 39.

The square root of 1275507552 is about 35714.2485851236. The cubic root of 1275507552 is about 1084.4953097440.

The spelling of 1275507552 in words is "one billion, two hundred seventy-five million, five hundred seven thousand, five hundred fifty-two".