402055537 has 8 divisors (see below), whose sum is σ = 433840680. Its totient is φ = 370392960.

The previous prime is 402055519. The next prime is 402055583. The reversal of 402055537 is 735550204.

It can be written as a sum of positive squares in 4 ways, for example, as 134536801 + 267518736 = 11599^2 + 16356^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402055537 - 2¹⁵ = 402022769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402055499 and 402055508.

It is not an unprimeable number, because it can be changed into a prime (402055517) 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, 23764 + ... + 36997.

It is an arithmetic number, because the mean of its divisors is an integer number (54230085).

Almost surely, 2^402055537 is an apocalyptic number.

It is an amenable number.

402055537 is a deficient number, since it is larger than the sum of its proper divisors (31785143).

402055537 is a wasteful number, since it uses less digits than its factorization.

402055537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61283.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 402055537 is about 20051.3225748328. The cubic root of 402055537 is about 738.0662544592.

The spelling of 402055537 in words is "four hundred two million, fifty-five thousand, five hundred thirty-seven".