1225151755 has 16 divisors (see below), whose sum is σ = 1504368000. Its totient is φ = 957548160.

The previous prime is 1225151723. The next prime is 1225151771. The reversal of 1225151755 is 5571515221.

It is not a de Polignac number, because 1225151755 - 2⁵ = 1225151723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225151755.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31966 + ... + 58924.

It is an arithmetic number, because the mean of its divisors is an integer number (94023000).

Almost surely, 2^1225151755 is an apocalyptic number.

1225151755 is a deficient number, since it is larger than the sum of its proper divisors (279216245).

1225151755 is a wasteful number, since it uses less digits than its factorization.

1225151755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27174.

The product of its digits is 17500, while the sum is 34.

The square root of 1225151755 is about 35002.1678614340. The cubic root of 1225151755 is about 1070.0316626727.

Adding to 1225151755 its reverse (5571515221), we get a palindrome (6796666976).

The spelling of 1225151755 in words is "one billion, two hundred twenty-five million, one hundred fifty-one thousand, seven hundred fifty-five".