57619172550 has 96 divisors (see below), whose sum is σ = 145474867584. Its totient is φ = 15089184000.

The previous prime is 57619172549. The next prime is 57619172603. The reversal of 57619172550 is 5527191675.

It is a self number, because there is not a number n which added to its sum of digits gives 57619172550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3317890 + ... + 3335210.

It is an arithmetic number, because the mean of its divisors is an integer number (1515363204).

Almost surely, 2^57619172550 is an apocalyptic number.

57619172550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 57619172550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72737433792).

57619172550 is an abundant number, since it is smaller than the sum of its proper divisors (87855695034).

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

57619172550 is a wasteful number, since it uses less digits than its factorization.

57619172550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17734 (or 17729 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 48.

The spelling of 57619172550 in words is "fifty-seven billion, six hundred nineteen million, one hundred seventy-two thousand, five hundred fifty".