1252603745534 has 16 divisors (see below), whose sum is σ = 1919105491968. Its totient is φ = 612905014392.

The previous prime is 1252603745513. The next prime is 1252603745563. The reversal of 1252603745534 is 4355473062521.

It is a happy number.

It is a super-2 number, since 2×1252603745534² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 42287 + ... + 1583349.

It is an arithmetic number, because the mean of its divisors is an integer number (119944093248).

Almost surely, 2^{1252603745534} is an apocalyptic number.

1252603745534 is a deficient number, since it is larger than the sum of its proper divisors (666501746434).

1252603745534 is a wasteful number, since it uses less digits than its factorization.

1252603745534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549759.

The product of its (nonzero) digits is 3024000, while the sum is 47.

The spelling of 1252603745534 in words is "one trillion, two hundred fifty-two billion, six hundred three million, seven hundred forty-five thousand, five hundred thirty-four".