51352512601040 has 40 divisors (see below), whose sum is σ = 136450962055680. Its totient is φ = 17606575748736.

The previous prime is 51352512600989. The next prime is 51352512601043. The reversal of 51352512601040 is 4010621525315.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51352512601043) 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, 45850457120 + ... + 45850458239.

It is an arithmetic number, because the mean of its divisors is an integer number (3411274051392).

Almost surely, 2^{51352512601040} is an apocalyptic number.

It is an amenable number.

51352512601040 is an abundant number, since it is smaller than the sum of its proper divisors (85098449454640).

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

51352512601040 is a wasteful number, since it uses less digits than its factorization.

51352512601040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91700915379 (or 91700915373 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 51352512601040 in words is "fifty-one trillion, three hundred fifty-two billion, five hundred twelve million, six hundred one thousand, forty".