1225783077532 has 24 divisors (see below), whose sum is σ = 2310324989616. Its totient is φ = 565698196608.

The previous prime is 1225783077529. The next prime is 1225783077559. The reversal of 1225783077532 is 2357703875221.

It is a super-2 number, since 2×1225783077532² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 1225783077532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372058 + ... + 1609345.

It is an arithmetic number, because the mean of its divisors is an integer number (96263541234).

Almost surely, 2^{1225783077532} is an apocalyptic number.

It is an amenable number.

1225783077532 is a deficient number, since it is larger than the sum of its proper divisors (1084541912084).

1225783077532 is a wasteful number, since it uses less digits than its factorization.

1225783077532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993317 (or 1993315 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 52.

The spelling of 1225783077532 in words is "one trillion, two hundred twenty-five billion, seven hundred eighty-three million, seventy-seven thousand, five hundred thirty-two".