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57080155251 = 378930540479
BaseRepresentation
bin110101001010001111…
…100000110001110011
312110100000101022202010
4311022033200301303
51413400004432001
642120001454003
74060333212540
oct651217406163
9173300338663
1057080155251
1122231294529
12b090041303
1354c885b8c2
142a96b93bc7
1517412438d6
hexd4a3e0c73

57080155251 has 16 divisors (see below), whose sum is σ = 87956582400. Its totient is φ = 32250744768.

The previous prime is 57080155219. The next prime is 57080155259. The reversal of 57080155251 is 15255108075.

It is a happy number.

57080155251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57080155251 - 25 = 57080155219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57080155259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15268371 + ... + 15272108.

It is an arithmetic number, because the mean of its divisors is an integer number (5497286400).

Almost surely, 257080155251 is an apocalyptic number.

57080155251 is a deficient number, since it is larger than the sum of its proper divisors (30876427149).

57080155251 is a wasteful number, since it uses less digits than its factorization.

57080155251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30540578.

The product of its (nonzero) digits is 70000, while the sum is 39.

The spelling of 57080155251 in words is "fifty-seven billion, eighty million, one hundred fifty-five thousand, two hundred fifty-one".

Divisors: 1 3 7 21 89 267 623 1869 30540479 91621437 213783353 641350059 2718102631 8154307893 19026718417 57080155251