51542203533015 has 64 divisors (see below), whose sum is σ = 89082444487680. Its totient is φ = 25297157529600.

The previous prime is 51542203532987. The next prime is 51542203533047. The reversal of 51542203533015 is 51033530224515.

It is not a de Polignac number, because 51542203533015 - 2⁶ = 51542203532951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 266132215 + ... + 266325815.

It is an arithmetic number, because the mean of its divisors is an integer number (1391913195120).

Almost surely, 2^{51542203533015} is an apocalyptic number.

51542203533015 is a deficient number, since it is larger than the sum of its proper divisors (37540240954665).

51542203533015 is a wasteful number, since it uses less digits than its factorization.

51542203533015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197784.

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 51542203533015 in words is "fifty-one trillion, five hundred forty-two billion, two hundred three million, five hundred thirty-three thousand, fifteen".