50701890 has 64 divisors (see below), whose sum is σ = 127961856. Its totient is φ = 12832512.

The previous prime is 50701879. The next prime is 50701891. The reversal of 50701890 is 9810705.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (50701891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135744 + ... + 136116.

It is an arithmetic number, because the mean of its divisors is an integer number (1999404).

Almost surely, 2^50701890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50701890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63980928).

50701890 is an abundant number, since it is smaller than the sum of its proper divisors (77259966).

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

50701890 is a wasteful number, since it uses less digits than its factorization.

50701890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 50701890 is about 7120.5259637193. The cubic root of 50701890 is about 370.1190023837.

The spelling of 50701890 in words is "fifty million, seven hundred one thousand, eight hundred ninety".