15252244462542 has 16 divisors (see below), whose sum is σ = 31213895644800. Its totient is φ = 4965847034232.

The previous prime is 15252244462537. The next prime is 15252244462549. The reversal of 15252244462542 is 24526444225251.

It is a super-2 number, since 2×15252244462542² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15252244462491 and 15252244462500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15252244462549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29558613042 + ... + 29558613557.

It is an arithmetic number, because the mean of its divisors is an integer number (1950868477800).

Almost surely, 2^{15252244462542} is an apocalyptic number.

15252244462542 is an abundant number, since it is smaller than the sum of its proper divisors (15961651182258).

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

15252244462542 is a wasteful number, since it uses less digits than its factorization.

15252244462542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59117226647.

The product of its digits is 6144000, while the sum is 48.

Adding to 15252244462542 its reverse (24526444225251), we get a palindrome (39778688687793).

The spelling of 15252244462542 in words is "fifteen trillion, two hundred fifty-two billion, two hundred forty-four million, four hundred sixty-two thousand, five hundred forty-two".