52474890 has 64 divisors (see below), whose sum is σ = 136515456. Its totient is φ = 12832512.

The previous prime is 52474883. The next prime is 52474897. The reversal of 52474890 is 9847425.

52474890 is a nontrivial binomial coefficient, being equal to C(10245, 2).

It is an interprime number because it is at equal distance from previous prime (52474883) and next prime (52474897).

It is a super-2 number, since 2×52474890² = 5507228161024200, which contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52474897) 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, 76489 + ... + 77171.

It is an arithmetic number, because the mean of its divisors is an integer number (2133054).

Almost surely, 2^52474890 is an apocalyptic number.

52474890 is the 10244-th triangular number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52474890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68257728).

52474890 is an abundant number, since it is smaller than the sum of its proper divisors (84040566).

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

52474890 is a wasteful number, since it uses less digits than its factorization.

52474890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 52474890 is about 7243.9554112377. The cubic root of 52474890 is about 374.3839128297.

The spelling of 52474890 in words is "fifty-two million, four hundred seventy-four thousand, eight hundred ninety".